Penny is ____ to put the vase on the table.
A. to go
B. go
C. going
D. went
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Look! George ____ hard.
A. is working
B. working
C. work
D. to work
____ not ____ George that letter.
A. Is, sending
B. Do, send
C. Are, sending
Does, send
George ____ the bookcase pink now.
A. paint
B. painting
C. is painting
D. to paint
in front ____ 在……之前
A. of
B. to
C. with
D. off