Our class is made up of 54 students, _____ are girls.
| A．of which two-fifths | B．of whom two-fifths |
| C．two-fifth of which | D．two-fifth of whom |
—The exam was too difficult, wasn’t it?
—Yes, I don’t think ______ could pass it.
| A．somebody | B．anybody | C．nobody | D．everybody |
People in the west make ____ a rule to buy Christmas presents for their relatives and friends.
| A．it | B．that | C．this | D．as |
--- What are you going to do tomorrow?
--- I will go _____ with my friends on the lake.
| A．hunting | B．shopping | C．shipping | D．boating |
You _____ practise the drums while the baby is sleeping.
| A．needn’t | B．mightn’t | C．mustn’t | D．won’t |
After the new equipment was introduced，they produced ________machines this year as the year before.
| A．as twice many | B．as many twice |
| C．twice as many | D．twice many as |