Not until his mother came in ________to prepare his lessons.
#81824
A
did the boy begin
B
the boy began
C
began the boy
D
the boy did begin
推荐题目
Little Tom is an orphan._____,he has to make a living by himself. 
#83925
A
A child as he is
B
Child as he is
C
Child as is he
D
A child though he is
By no means __________ to her parents.
#81246
A
this is the first time has she lied
B
this is the first time does she tell a lie
C
is this the first time she has lied
D
is this the first time she was lying
Only when I left my parents for Italy ________ how much I loved them.
#80271
A
I realized
B
I had realized
C
had I realized
D
did I realize