Does your brother know ______?
A. where will the team play
B. where will the team leave
C. who will be our team leader
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There are so many kinds of MP4 players in the shop. I can’t decide _____.
A. what to buy
B. which to buy
C. when to buy
Ladies don’t like others to ask them ____.
A. how old are they
B. what are their ages
C. how old they are
The teacher told us: Don’t play on the street. The teacher told us____ _____ _____on the street.
A. to not play
B. not to play
C. do not play
在匀速直线运动的车厢内, 自由下落小球的相对轨迹如何? ( )
A. 铅垂直线
B. 向后倾斜的直线
C. 抛物线
D. 无法确定