Only after spending several nights working on...

Only after spending several nights working on the math problem ________ to wonder whether the problem was wrongly set.

A. had he begun           B. he began                C. did he begin            D. began he

高二英语单项填空中等难度题查看答案及解析

Only after spending several nights working on the math problem ________ to wonder whether the problem was wrongly set.

A. had he begun           B. he began           C. did he begin               D. began he

高二英语单项填空简单题查看答案及解析

Only after he had spent several nights working on the math problem _______ to wonder whether the problem was wrongly set.

高二英语单项填空简单题查看答案及解析

--I’m exhausted. I ______ on a design day and night.

--You’d better have several days off after finishing it. Otherwise you might break down.

A. work　　　　 B. worked

C. had worked　　 D. have been working

高二英语单项填空中等难度题查看答案及解析

　　 the difficult maths problem, I have consulted Professor Russell several times.

A. Working out 　　　　 B. Worked out 　　　　 C. To work out　　　　 D. Work out

高二英语单项填空简单题查看答案及解析

_______ the difficult maths problem, she has consulted Professor Liu several times.

A. Worked out　　 B. To work out　　 C. Having worked out　　 D. Work out

高二英语单项填空困难题查看答案及解析

Only after they had discussed the matter for several hours ______a decision.

高二英语单项填空中等难度题查看答案及解析

Only after they had discussed the matter for several hours ________ a decision .

高二英语单项填空中等难度题查看答案及解析

After ____ seemed about a quarter, Li Lin managed to work out the difficult math problem, which pleased our teacher.

A. that　　 B. it　　 C. what　　 D. which

高二英语单项填空困难题查看答案及解析

One summer several years ago, my family was enjoying a barbecue on the beach. After the barbecue, my father-in-law invited me to go fishing.  Fishing was his hobby, but I 36 went fishing. We walked a little way along the beach and reached a rock by the shore, and I 37 the hook into the sea from there.  Frankly speaking, I am a (n)38 person, and although I had not felt a tug (猛拽) on the line, I reeled up the hook after five minutes or so. I had caught 39. It was a starfish. It trembled uneasily when I 40 the hook from its ugly mouth. I threw the starfish back into the sea. After another five minutes I caught another starfish and I threw it back again.

After a while, I caught yet another starfish. That was 41  time, and this time I really got angry. I hit the starfish on the rock 42 throwing it into the sea. I was not in the 43 to continue fishing any more.

When I was 44 the fishing tools, I noticed a little girl looking at the starfish on the rock. We 45 looks with each other. The little girl spoke to me in a 46voice. “Sir, would you mind if I 47 the starfish back into the sea?”“Not at all,” I replied. “"But you know, there are too many starfish in the sea, and they eat many shellfish. 48, they look so ugly. I don't like them.”

“I understand,” said the little girl. “But if the starfish cannot get back to the sea, it will be 49 by the sun and die. My dead grandfather once told me that there are no living creatures that have no right to exist in the world. God 50 every creature because it was needed by nature. Poisonous snakes, spiders, and starfish were born into this world with a certain 51 for their existence.”

“All right, dear, please throw the starfish back into the sea,” I said to the little girl, feeling 52. The girl picked up the starfish and gently put it into the sea, and she  53 at me and said, “Thank you, sir.”

Many people like "cute" creatures such as dogs, cats, and rabbits, while they tend to dislike “ugly” creatures such as snakes, spiders, and starfish.  However, the “cuteness” and “ugliness” of things are decided 54 only on one’s personal opinions. There are no living creatures that have no55  in the world-- this is what I learned from the little girl.

高二英语完型填空中等难度题查看答案及解析