About six months later,the letter they were looking forward to ________at last.
— I saw Dave in the lift this morning. — Really? He _______ around here for a long time.
— Could you send me an application for the TOEFL? — _______. What’s your name and address?
It is very important for us to _______ between good and bad.
A great explosion _______ in a chemical factory in Hangzhou several months ago.
I’ve never dreamed of _______a picture on the wall.