Tom didn’t understand the text ________ the teacher explained it to him.
#58317
A
when
B
while
C
until
D
since
推荐题目
—________ are you going?—To the bookstore.
#55943
A
Where
B
What
C
Which
D
Who
—Could you tell me       ?       —Certainly. 
#55765
A
who is he like
B
who are you waiting for
C
what is his name
D
what he looks like