The shirt looks very nice. I guess it is _______ 100 yuan.
| A．at first | B．at most | C．at least | D．at last |
—______ 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 for
B.spend on
C.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 to
B.listen to
C.hearing of