The scientist has failed in the test 100 times.He is trying () 101st time.A a B an C the D 不填
问题描述:
The scientist has failed in the test 100 times.He is trying () 101st time.A a B an C the D 不填
答
选C
the表特指,a an 表泛指 an 用于元音前
答
C, 这里表示尝试第101次,是特指101次。所以用the,
a和an表的是泛指,在句中不符合。
答
A 这位科学家在实验中失败了100次.他正在进行又一次尝试.这里在序数词前+不定冠词表示“再,又”.