You’d better _________ up late to complete your homework.It’s bad for your health.
The doctors have done everything they can______ the patient’s life.
.--Look, there are ______number of ducks swimming in the river. --Yes. ______number of them is over ten.
--Will Tom come to our party? --______I’m not sure.
They were all very tired, but ______of them took a rest.
After the hard work, what we want is ______a rest.