A burning cigarette he threw into the wastepaper basket () fire to the hotel.

If a baby bird stays () for two or three weeks after le...

单项选择题If a baby bird stays () for two or three weeks after leaving the nest, it has a fair chance of becoming an adult.

The service in this restaurant is very poor; there are ...

单项选择题The service in this restaurant is very poor; there are not enough waiters to wait ()customers.