You were silly not__ your car（）
A. to lock
B. to have locked
C. locking
D. having locked
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Please remain ______; the winner of the prize will be announced soon（）
A. seating
B. seated
C. to seat
D. to be seated
In 1913 Edison developed the synchronization of pictures and sound,____（）
A. so opened the way for talking motion pictures
B. thus opening the way for talking motion pictures
C. to open the way to talk motion pictures
D. opening the way to talking motion pictures
____, the wire becomes longer（）
A. Heating
Being heated
C. To heat
D. Having heated
“Can’t you read!” Mary said,____ to the notice（）
A. and angrily pointing
B. angrily pointed
C. pointing angrily
D. and pointed angry
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