---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
Have you prepared for the sports meeting which _____ soon?
#101103
A
has taken place
B
will be taken place
C
is to take place
D
is to be taken place
The number of students in our school _________ by 5 % every year.
#100840
A
rise
B
rises
C
raises
D
raise
(2013·高考天津卷)The water supply has been cut off temporarily because the workers ________ one of the main pipes.
#99708
A
had repaired
B
have repaired
C
repaired
D
are repairing
-What's up? You look worried.Well,I_____on the problem for 5 hours but I haven't got a single clue.
#100541
A
have worked
B
worked
C
will work
D
have been working
This was the first time that Chongqing the Listening Examination of Public English Test System II (PETS-2).
#100449
A
has joined
B
joined
C
will join
D
had joined