-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
推荐题目
—I failed again. I wish I _________ harder.—But you _________.
#104161
A
had worked； hadn’t
B
worked； don’t
C
had worked； didn’t
D
worked； didn’t
—You have promised to go ,then why aren’t you getting ready ？—I you to go at once .
#102649
A
haven’t realized ;want
B
didn’t realize ;wanted
C
don’t realize ;want
D
don’t realize ;wanted
--- I let my secretary call you several times. Do you know that? ---- I _______ in a meeting. I’m sorry.
#103464
A
had been
B
was
C
am
D
have been
-- Have you moved into the new house? -- Not yet. The rooms _______.
#103539
A
are painting
B
are being painted
C
are painted
D
are being painting