I have a headache ,______ I can't go to your party
A. but
B. then
C. therefore
D. when
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Mr Smith’s plane _______ . Let’s wait for him here .
A. hasn’t arrived
B. didn’t arrive
C. doesn’t arrive
D. couldn’t arrive
Almost all the water _______ gone . Please save water !
A. are
B. is
C. have
D. were
— Look ! There is a tall tree over there . Can you _______ , Dave ?— Yes , let me have a try .
A. fall off it
B. send up
C. come down it
D. climb up it
Mr Li is out . But he _______ here ten minutes ago.A.B. is C.D.
A. was
B. is
C. will be
D. would be
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