---- Where is Kate ?
--_______she is cleaning the classroom.
| A．May | B．May be | C．Maybe | D．Can |
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
When I have problems I often ask my teacher ___ .
A. to helping
B. help
C. for help
You can’t expect ________ a foreign language well in several months.
A. to learn B. learning C. learnt