16. The river, ______the bank are covered with trees, is very long.
| A．whose | B．which | C．of which | D．which of |
The general manager often looks through the sales _____ his men have kept records in different branch companies.
| A．where | B．which | C．of which | D．when |
While traveling, whether on business or for _____ , you often need to stay in a hotel.
| A．pressure | B．pleasure | C．patience | D．purpose |
In the park , the number of the visitors is tightly ____ to avoid damaging the environment or putting stress on the animals.
| A．limited | B．intended | C．expected | D．encouraged |
－Do you think the Houston will beat the Dallas?
－To tell the truth, no matter ______ side wins, I shall be satisfied.
| A．what | B．whether | C．which | D．whose |
--Oh? ______ you leave ? Stay a bit longer.
-- Sorry, I’ve got an early start tomorrow morning
| A．Must | B．Can | C． May | D．Would |