ack doesn’t believe that her son is able todesign a digital camera, ______

The employee toimpress the company with his cleverness and promptness.

ub is open to everyone____age, sex or educational background.

Our class is________ 60 students while theirs________ 65 students.

I didn’t mean to offend you, but it’s really a bad behavior to _________ when others are chatting, especially something private.[ ]