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
He is famous both ______ a novelist and a poet but he is more famous ______ his novels.
A. for; as B. with; for C. as; for D. like; as
I won’t call you, ________ something unexpected happens.
A. unless B. whether C. because D. while
