The house could fall down soon if no one ______ some quick repair work.
#99590
A
does
B
has done
C
is doing
D
had done
推荐题目
—What a mistake!—Yes. I________his doing it another way, but without  success.
#99176
A
was suggesting
B
will suggest
C
would suggest
D
had suggested
The student didn’t pay any attention to the lecture; he ________ of something else. 
#104749
A
thought
B
had thought
C
would think
D
was thinking
----Is this the first time you ________ to Harbin?---- No, but the first time I ____ here, the city wasn’t so beautiful.
#102687
A
visited; came
B
visited; have come
C
have visited; have come
D
have come; came