When did the Green family arrive ______ Shanghai? — They got there ______ the afternoon of May 2nd. [ ]

How much money did you pay for the drink?—None. It’s ______.

The boy has poor eyesight because of _______ computer games.

It’s very difficult to see ____ the window because the glass is very dirty.[ ]

Mr. Smith’s never angry with their daughter. __________ Mrs. Smith.