I’ll take part in the school sports meeting.—______

Our school life is very interesting. We have much time _______ all kinds of after-school activities and we only have half an hour _________ homework.

There was enough evidence to prove that the explosion in Robinson’s house _______ the leak of natural gas.

.So often ______ inrecent years that it has almost become a rule.

Does the young man standing there _____ the company.— No, the company is _____ his father[ ]