— Have you ever visited the Opera House?—Yes．When I was in Sydney, I ______ it twice．
#102371
A
have visited
B
had visited
C
visited
D
would visit
推荐题目
---Play computer games again? There’re two days left for the final exam! --- _________you ________me? I’m too tired.
#103633
A
Are; rushing
B
Have; rushed
C
Will; rush
D
Do; rush
----- What’s that terrible noise? ----- The neighbors ________ for a party.
#101539
A
are preparing
B
prepare
C
have prepared
D
will prepare
The wet weather will continue tomorrow when a cold front ________ to arrive.
#99750
A
is expected
B
is expecting
C
expects
D
will be expected
Every possible means to prevent the air pollution, but the sky is not still clear.
#101886
A
is used
B
are used
C
has been used
D
have been used
Years ago we didn't know this, but recent science ______ that people who don't sleep well soon get ill.
#104011
A
showed
B
has shown
C
will show
D
is showing