I failed in doing the experiment several time...

I failed in doing the experiment several times. My teacher suggested ________again.

A.to try B.trying C.try D.tried

九年级英语单选题中等难度题查看答案及解析

—I always fail in my goals. What should I do?

—You do have enough time for everything. This is the first thing you need to________.

A.explain B.realize C.develop D.compare

九年级英语单选题中等难度题查看答案及解析

David doesn’t give up _______ he has failed in the experiment four times.

A. if           B. while        C. though       D. since

九年级英语单项填空困难题查看答案及解析

David didn’t give up ______ he had failed in the experiment four times．

A. if            B. while         C. though        D.since

九年级英语单项填空困难题查看答案及解析

David didn’t give up ______ he had failed in the experiment four times.

A. if            B. while           C. though        D. since

九年级英语单项填空困难题查看答案及解析

David didn’t give up _________ he had failed in the experiment four times.

A. if　　 B. so　　 C. though　　 D. and

九年级英语单项填空中等难度题查看答案及解析

---I failed in doing the experiment just now, Mr Brown.

---Don’t ________! Try once more and you will find which step was wrong.

A. take up B. make up C. give up D. put up

九年级英语单选题中等难度题查看答案及解析

By the time I woke up,my father ________ in the bathroom for several minutes.

A.has gone B.has been C.had been D.had gone

九年级英语单选题中等难度题查看答案及解析

---What do you think of my 　　　　　　 in Africa in the past ?

---Very interesting!

A. experiences 　　　　　 　 B. influence

C. popularity　　 　　　　 　　 D. interests

九年级英语单项填空中等难度题查看答案及解析

The experiment the young man devoted a lot of time ______ at last.

A. to failing　　 B. to failed　　 C. to fail　　 D. fail

九年级英语单选题中等难度题查看答案及解析