—We all had a lot of fun at the barbecue yesterday. Pity you weren’t there. — I really should have gone with you, but I ________ on some remaining problems. 
#100311
A
was working
B
would work
C
worked
D
had worked
推荐题目
Great changes _____ in this city over the past five years.
#100896
A
tookplace
B
havetakenplace
C
weretakenplace
D
havebeentakenplace
I ________ up to $5 000 by the time the new term begins in September.
#99453
A
have saved
B
will have saved
C
will be saving
D
had saved
Though iPhone 4 is such a hit product, I won’t buy one unless its after service ______.
#102540
A
was improved
B
gets improved
C
is improving
D
had got improved