问答题

Unable to control themselves, some teenagers get hooked by online games, ______ (这成了教师和家长始终提心的事).

【参考答案】

which is a constant worry to teachers and parents
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单项选择题
A．He means that he didn’t know the thesis proposal.B．He means that he hasn’t have time to read the proposal.C．He means that he will not help her read the proposal.D．He means that she’d have given it to him earlier.
A．He means that he didn’t know the thesis proposal.
B．He means that he hasn’t have time to read the proposal.
C．He means that he will not help her read the proposal.
D．He means that she’d have given it to him earlier.
填空题
4G wireless communication can take the place of ______ to send images back to central command center.
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