_________ others whenever you can _______you will feel happy.
| A．Help; and | B．To help, and | C．Helping; so | D．Helped; then |
________you can pass the exam or not depends on yourself.
| A．What | B．That | C．How | D．Whether |
---- It is generally believed that teaching is __________it is a science.
| A．an art much as | B．much as an art as |
| C．as an art much as | D．as much an art as |
----Three students came late to school this morning, Tom and Jack_______.
| A．were included | B．were including | C．included | D．including |
----Drinking is harmful_______our health.
| A．to | B．be | C．with | D．at |
----Must I finish the jod at seven o’clock?
----No, you___________
| A．mustn’t | B．can’t | C．needn’t | D．don’t have |