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
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
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
____he had failed many times, he didn’t give up and succeeded in the end.
A. Unless B. Although C. If D. As
九年级英语单选题简单题查看答案及解析
_______he had failed many times, he didn’t give up and succeeded in the end.
A. Unless B. Although C. If
九年级英语单项填空中等难度题查看答案及解析
_____ Edison had failed many times，he didn't give up and succeed in the end.
A. Unless B. Although C. Because
九年级英语单选题中等难度题查看答案及解析
He failed the exam, ________ he didn't give up.
A.because B.so C.or D.but
九年级英语单选题中等难度题查看答案及解析
He had to give up the plan, ___ he?
A. did B. didn't C. does D. doesn't
九年级英语单选题中等难度题查看答案及解析
Although he failed this time, he didn’t give up and ＿＿＿＿＿＿studying hard..
A. stopped B. continued C. succeeded D. finished
九年级英语单项填空简单题查看答案及解析