What? Is it the first time that this _________?
#100020
A
happened
B
has happened
C
had happened
D
happens
推荐题目
He promised me if we_______ the game, he ________us a round of drink.
#100819
A
win; will buy
B
would win; would buy
C
won; bought
D
won; would buy
The project _______ a success as the income of the company increases every year. 
#102820
A
is proved
B
had proved
C
has proved
D
has been proved
The wet weather will continue tomorrow, when a cold front ______ to arrive.
#104956
A
is expected
B
is expecting
C
expects
D
will be expected