He tried his best to solve the problem，______...

He tried his best to solve the problem，________difficult it was.

A．however　　　　 B．no matter

C．whatever　　　 D．Although

高二英语单项填空中等难度题查看答案及解析

He tried his best to solve the problem, _______difficult it was.

高二英语单项填空中等难度题查看答案及解析

The professor tried his best to make the students__________what he was saying but he found it hard to make himself ___________.

A. understand; understand

B. understand; understood

C. understood; understood

D. understood; understand

高二英语单项填空中等难度题查看答案及解析

Though the professor tried his best to explain the difficult question, the students still looked _____.

A. confusing　　 　　　　 B. being confused

C. to confuse　　 　　 　 D. confused

高二英语单项填空中等难度题查看答案及解析

It was not until dark ______ he found ___ he thought was the correct way to solve the problem.

A. that; what   B. that; that      C. when; what     D. when; that

高二英语单项填空简单题查看答案及解析

The official made 　　　　 clear that he would do everything possible to solve the problem.

A.it B.this C.that D.him

高二英语单项填空简单题查看答案及解析

It was not until dark ________ he found ________ he though was the correct way to solve the problem.

A. that; what　　　　　　　　 B. that; that

C. when; what　　 　　　　 D. when; that

高二英语单项填空中等难度题查看答案及解析

He tried his best to comfort the injured passengers and told them help was ________.

A. in a way　　 B. by the way

C. on the way　　 D. in the way

高二英语单项填空中等难度题查看答案及解析

After trying hard, they _______ the hope of finding an effective way to solve the problem.

高二英语单项填空简单题查看答案及解析

—What you’ve said sounds___, but can we really solve the problem in that way?

—It is worth a try.

A. absurd　　　　　 B. awful　　　　 C. reasonable　　　　 D. passive

高二英语单项填空中等难度题查看答案及解析