--- What’s the weather like? --- Pretty hot and wet in the summer, but it _____ be quite cold in the winter. 

No student______ go out of school for snacks during the break without the teacher’s permission.

Tom hasn’t come to work since last Friday.       he have had an accident?

 — Do you know where Mary is? I couldn’t find her anywhere. — Well . She        have gone far—her coat’s still here.

 When Marx was in London, he  __   read at the library for hours.