—Is there any possible way to help them get rid of such a bad habit?—To tell the truth, it’s very hard. But we ________ on this problem, trying to improve the situation .
#101218
A
worked
B
had worked
C
are working
D
had been working
推荐题目
It will not be long before that young journalist _______ me again.
#100422
A
will meet
B
met
C
meets
D
would meet
The manager was concerned to hear that two of his trusted workers _____.
#101325
A
are leaving
B
have left
C
were leaving
D
will leave
— Flight MU257 ______, I must be off now.— Have a nice trip.
#102791
A
is being announced
B
has announced
C
was announcing
D
had been announced.
Tom was the second to reach the top of the mountain, Mike _______ the first.
#102601
A
was
B
is
C
being
D
has been
. You must do your homework now; you ______ computer games all the evening.
#103809
A
have been playing
B
play
C
are playing
D
played