单项选择题

The woman biologist stayed in Africa studying wild animals for 13 years before she returned. Oh, dear! She() a lot of difficulties!

A．may go through
B．might go through
C．ought to have gone through
D．must have gone through

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单项选择题
Peter () TV with Tom this time yesterday.

A．was watching
B．watched
C．were watching
D．had watching
单项选择题
— Put these glasses away before they — OK. I'll put them in the cupboard.()

A．have broken
B．are breaking
C．get broken
D．will be broken
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