—You may find the key to the math problem on page 107.—Ah, it’s so simple. I wonder why I _____ of that.
#102292
A
hadn’t thought
B
haven’t thought
C
didn’t think
D
wasn’t thinking
推荐题目
There happened a murder case _________ the man ___________the mayor.
#101720
A
linked; with
B
linking; to
C
connected; with
D
joined; to
The fact that so many people still smoke in public places____ that we may need a nationwide campaign to raise awareness of the risks of smoking.
#99646
A
suggest
B
suggests
C
suggested
D
suggesting
Before the first nonstop flight made in 1949,it______necessary for all planes to land for refueling.
#104556
A
would be
B
has been
C
had been
D
would have been
---- You look tired. ---- Yeah, I ________ since 4 o’clock.
#103605
A
had played
B
have been playing
C
am playing
D
have been played