I _____ TV at 12 o'clock yesterday.
A、was watching
B、watch
C、is watching
D、have watched
第1题:
A is watching
B are watching
C watch
D to watch
第2题:
A、watches
B、watch
C、watching
D、watched
第3题:
齿廓啮合基本定律的公式正确的是?
A.i12=ω1/ω2
B.i12=O2P/O1P
C.i12=ω2/ω1
D.i12=O1P/O2P
第4题:
I used to _____TV on weekends, but now I start to do some sports with my friends.
A:watched
B:watch
C:watching
D:be watched
第5题:
Please tell your officers ______ them carefully.
A.Watch
B.To watch
C.Watching
D.Watched