Not until they left school ____how much their teachers loved them and helped them.
#81861
A
that they realized
B
had they realized
C
when they would realize
D
did they realize
推荐题目
He is only too ready to help others，seldom，________refusing them when they turn to him.
#79541
A
if never
B
if ever
C
if not
D
if no
Only when _______ 30 years old ______ to learn English.
#82625
A
was he; did he begin
B
he was; he began
C
he was; did he begin
D
was he; he began
I have been living in the United States for twenty years,but seldom _______ so lonely as now.
#83839
A
have I felt
B
I had felt
C
I have felt
D
had I felt
Only after spending several nights working on the math problem to wonder whether the problem was wrongly set.
#83176
A
had he begun
B
he began
C
did he begin
D
began he