问题
选择题
David didn’t give up ______ he had failed in the experiment four times.
A.if
B.while
C.though
D.since
答案
答案:C
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。
David didn’t give up ______ he had failed in the experiment four times.
A.if
B.while
C.though
D.since
答案:C
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。