After the summer vacation, the professor, together with his fellow teachers, ______ the scientific experiment
#73203
A
goes down
B
go down
C
gets down to
D
get down to
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—John, why are you so tired?—I ______ pingpong with Jimmy.
#64769
A
play
B
played
C
have played
D
have been playing
Please______the numbers and I’m sure they will ______more than 2000.
#84482
A
add;add up
B
add up;add up
C
add up;add up to
D
add;add up
The students were told to _____ their English before going abroad.
#78386
A
give up
B
polish up
C
use up
D
end up