---Alice, you look puzzled, Have you understood it?---No．I _____another problem just now．
#101781
A
l have thought of
B
am thinking of
C
had thought of
D
was thinking of
推荐题目
They won’t buy any new clothes because they ________ money to buy a new car.
#104734
A
save
B
were saving
C
have saved
D
are saving
Yesterday afternoon, I ______ basketball with my classmates for two hours.
#100484
A
play
B
played
C
have played
D
had played
The man took out his iPad and saw the latest film while his car _____.
#102219
A
had been repaired
B
had repaired
C
was being repaired
D
was repairing
Kate ________ on her new novel, which is supposed to come out next month.
#103036
A
has been working
B
had worked
C
will be working
D
was working
I ___________ in the street when I met an old friend of mine yesterday.
#101416
A
walked
B
was walking
C
has walked
D
had walked