-—David has gone to Australia on business.—Really? I ______ why he was absent from today’s meeting.
#101832
A
am wondering
B
wonder
C
was wondering
D
had wondered
推荐题目
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
Hello, Tom. What a coincidence! I ______ about you. And here you are.
#100180
A
was just thinking
B
just thought
C
have just thought
D
would just think
My last job lacked variety; I __________ the same things all the time.
#100357
A
did
B
have done
C
was doing
D
have been doing
—Would you like another sandwich?—Another sandwich? I _______ my first one yet.
#104574
A
haven’t had
B
hadn’t had
C
didn’t have
D
don’t have
. Sales of CDs have greatly increased since the early 1990s, when people ________ to enjoy the advantages of this new technology.
#104797
A
begin
B
began
C
have begun
D
had begun