Look! What a clean room! Who_______ it?
—______ students are there in your class?—Forty-one.A. How much B. How many C. How long
—______ do you write to your pen friend?—Once a week.A. How long B. How soon C. How often
As students, we should ________ our study.A.pay forB.spend onC.concentrate on
Many students will be ________ if the class is boring.A.sleep B.sleepy C.sleeping
Students should pay attention to ________ the teacher in class.A.listening toB.listen toC.hearing of