问题补充:
David didn’t give up he had failed in the experiment four times.
A. if
B. while
C. though
D. since
答案:
A. if
B. while
(答案→)C. though
D. since
解析:考查状语从句。句意“大卫没有放弃,尽管他做实验已经失败四次了。”A引导条件状语从句;B引导时间状语从句;C引导让步状语从句;D引导原因状语从句。故选C。
时间:2024-03-28 11:48:47
David didn’t give up he had failed in the experiment four times.
A. if
B. while
C. though
D. since
A. if
B. while
(答案→)C. though
D. since
解析:考查状语从句。句意“大卫没有放弃,尽管他做实验已经失败四次了。”A引导条件状语从句;B引导时间状语从句;C引导让步状语从句;D引导原因状语从句。故选C。