Where is Tom ? --I am not sure.He ___be playingbasketball in the playground.Look at that girl,Is it Betty?--No ,it __be her.She has gone to Beijing.a.mustn't b.can't c.needn't. d.wouldn't It 's library,so you ____know shouting is not allowed here.
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Where is Tom ? --I am not sure.He ___be playingbasketball in the playground.Look at that girl,Is it Betty?--No ,it __be her.She has gone to Beijing.a.mustn't b.can't c.needn't. d.wouldn't It 's library,so you ____know shouting is not allowed here.
Where is Tom ? --I am not sure.He ___be playingbasketball in the playground.
Look at that girl,Is it Betty?--No ,it __be her.She has gone to Beijing.a.mustn't b.can't c.needn't. d.wouldn't It 's library,so you ____know shouting is not allowed here.
Where is Tom ? --I am not sure.He ___be playingbasketball in the playground.Look at that girl,Is it Betty?--No ,it __be her.She has gone to Beijing.a.mustn't b.can't c.needn't. d.wouldn't It 's library,so you ____know shouting is not allowed here.
may
can't
should
may/might,根据可能性大小来确定
选b
should