问题补充:
He was so busy that he couldn’t help the experiment.
A. doing
B. do
C. did
D. done
答案:
A. doing
(答案→)B. do
C. did
D. done
解析:考查固定词组。Can’t help doing sth情不自禁做某事;can’t help do sth不能帮忙做某事;句意:他如此的忙以至于不能帮助做实验。故B正确。
时间:2021-05-26 08:44:22
He was so busy that he couldn’t help the experiment.
A. doing
B. do
C. did
D. done
A. doing
(答案→)B. do
C. did
D. done
解析:考查固定词组。Can’t help doing sth情不自禁做某事;can’t help do sth不能帮忙做某事;句意:他如此的忙以至于不能帮助做实验。故B正确。
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