---Alice, you look puzzled, Have you understood it?---Yes．I _____another problem just now．
#101644
A
l have thought of
B
am thinking of
C
had thought of
D
was thinking of
推荐题目
How the fire in the dancing hall started _________ a mystery.
#100979
A
to remain
B
remains
C
is remaining
D
is remained
－Where did you put the car keys?－Oh, I ______ I put them on the chair because the phone rang as I _______ in.
#103998
A
remembered; come
B
remembered; was coming
C
remember; come
D
remember; was coming
Listen to the two girls by the window. What language _____?
#103239
A
did they speak
B
were they speaking
C
are they speaking
D
have they been speaking
— I ______ the chance to apply for the new post. What do you think? — I think you should go for it. We’ll all back you up.
#99362
A
have given
B
am given
C
have been given
D
was given
Bob tried to sweet-talk his mother into letting him go out. But when he saw his sweet talk________， he lost his temper.
#100086
A
hadn’t worked
B
wasn’t working
C
isn’t working
D
doesn’t work