Tom ______ an experiment when someone knocked...

Tom ______ an experiment when someone knocked at the door.

A. does B. did C. is doing D. was doing

九年级英语单项填空中等难度题查看答案及解析

---- Someone is knocking at the door.

---- It ______ be Tom. He is still in the school.

A. can’t　　　　　 B. mustn’t

C. could not　　　 D. might; not

九年级英语单项填空中等难度题查看答案及解析

- Someone is knocking at the door.

- It ______ be Tom. He is still in the school.
A. can’t            B. mustn’t                C. could not  　　　　　　　　　 　　　　　　　　　 　　　　　　　　　 D. might; not

九年级英语单项填空简单题查看答案及解析

--Did you hear someone knocking at the door just now, Tom?

--No, I _______ TV with my friend in my bedroom.

A. was watching B. watched C. am watching D. watch

九年级英语单选题中等难度题查看答案及解析

—Listen! Someone is knocking at the door. Who can it be?

—It _______ be Tom. He said he would visit me this evening.

A. can’t 　　 B. need　　　 C. must　　　　 D. mustn’t

九年级英语单项填空中等难度题查看答案及解析

—Someone is knocking at the door. Who ______ it be?

—It ______ be Tom. He is still in the school.

A. may; can’t          B. can; mustn’t    　

C. might; couldn’t   　 D. could; may not

九年级英语单项填空简单题查看答案及解析

--Listen! Someone is knocking at the door. Who _____it be?

---It_____be Tom. He phoned to visit me this evening.

A.may;may       B.may;shouldn’t    C.must;can      D. must;may

九年级英语单项填空简单题查看答案及解析

—Listen! Someone is knocking at the door. Who _____it be?

—It_____ be Tom. He phoned to visit me this evening.

A. may; may　　　　 B. may; shouldn’t

C. must; can　　　　 D. must; may

九年级英语单项填空中等难度题查看答案及解析

—Listen!Someone is knocking at the door．Who can it be?

—It________be Tom．He said he would visit me this evening．

A．can’t

B．need

C．must

D．mustn’t

九年级英语单项填空中等难度题查看答案及解析

Grace ___ a scary movie when someone knocked at the door .

A. is watching　　 B. will watch　　 C. was watching

九年级英语单选题中等难度题查看答案及解析