(2010·重庆模拟)—Alice, you look puzzled.Haven’t you understood it? —Yes.I _____of another problem just now. 
#102848
A
had thought
B
have thought
C
thought
D
was thinking
推荐题目
Jane was disappointed that most of the guests   ______when she _______ at the party.
#104932
A
left; had arrived
B
left; arrived
C
had left; had arrived
D
had left; arrived
-Why can’t I smoke here? --At no time__________ in the dormitory.
#102579
A
is smoking permitted
B
smoking is permitted
C
smoking is allowed
D
does smoking permit
---Are you still very busy? ---Yes, I _____ the report for the manager and it won’t take long.
#103212
A
have just finished
B
am just finishing
C
had just finished
D
am just going to finish
You have no chance of getting the position. I’m afraid you _____ your time if you apply for it.
#101223
A
waste
B
have wasted
C
have been wasting
D
will be wasting