--Why does the lake smell terrible?    ---Because large quantities of water ______.

. My suggestion is that Tom ______________ there on time.

--------I often have hamburgers for my breakfast. --------You’d better not. It’s bad for you _________ too much junk food.

Mr. Bush,  together with his wife and daughter _____ going to Japan next week.

The students in our school expected ______ more time for reviews and exercises before the College Entrance Examination next year.