We _______ on it for several hours but we have not yet reached any conclusion.
#104695
A
work
B
areworking
C
havebeenworking
D
havebeenworked
推荐题目
—Hi, Susan, where were you at lunch time？I ________ a seat for you in the coffee shop.—Oh, sorry to miss you.My political science class ran longer than usual.
#99574
A
am saving
B
was saving
C
had saved
D
have saved
Anti-Japanese War _______ in 1937 and it _______ eight years
#102807
A
was broken out; was lasted
B
broke out; lasted
C
happened; was continued
D
was happened; continued
She ought to stop working; she has a headache because she ________ too long.
#104735
A
has been reading
B
had read
C
is reading
D
read
--Look! Somebody the sofa. --Well, it wasn’t me. I didn’t do it.
#102155
A
is cleaning
B
was cleaning
C
has cleaned
D
had cleaned