—You may find the key to the math problem on page 107．—Ah, it's so simple. I wonder why I _____ of that．
#100893
A
hadn’t thought
B
haven't thought
C
didn't think
D
wasn't thinking
推荐题目
--- Haven’t seen you for ages! Where have you been, anywhere ?-- I _______ to New York City. I just got back.
#100786
A
have been sent
B
was sent
C
had been sending
D
would be sent
When I got there, the meeting _____ for ten minutes.
#102051
A
has been on
B
had begun
C
had been on
D
has begun
—You were out when I dropped in at your house yesterday.—Oh, I________ for a friend from Beijing at the railway station.
#104690
A
was waiting
B
had waited
C
am waiting
D
have waited
It’s natural that a man can hardly ______ a smile when he hears some good news.
#100665
A
hold up
B
hold back
C
hold off
D
hold on
Tom in the library every night over the last three months.
#102657
A
works
B
worked
C
have been working
D
had been working