ElectronicdevicessuchasiPodsan

Electronic devices such as iPods and headphones can do great harm to our hearing if _______ improperly.

A．being used

B．used

C．to be used

D．having been used

登录免费查看答案和解析

相关试题

I _______ have met him a long time ago. Both his name and face are very familiar.

A．may

B．can

C．would

D．should

收藏答案/解析

Are you still here？ You ______ home hours ago.

A．should go	B．should have gone
C．might go	D．may have gone

收藏答案/解析

As she’s not here, I suppose she _____ home.

A．must go	B．must have gone
C．might go	D．might be going

收藏答案/解析

You _____ him the news; he knew it already.

A．needn’t tell	B．needn’t have told
C．mightn’t tell	D．mightn’t have told

收藏答案/解析

You _____ practise the drums while the baby is sleeping.

A．needn’t

B．mightn’t

C．mustn’t

D．won’t

收藏答案/解析