1 . ________ you begin to do something, you must carry on with it, otherwise you will never achieve anything.

A．Once

B．Unless

C．Before

D．Although

2 . Reading books is a good way ________ the world.

A．know

B．knows

C．to know

D．knowing

3 . ________ you help me move the table upstairs?

A．Must

B．Should

C．Could

D．Need

4 . She just stared at me, ________ a beautiful smile, which made me strangely _______.

A．flashed, pleased	B．flashing, pleasing
C．flashing, pleased	D．flashed, pleasing

5 . In addition, your smart home__________ your health for you every day in the future.

A．will be monitoring

B．monitored

C．be monitoring

D．to monitor

6 . After cleaning up the classroom, I felt tired ________ happy.

A．nor

B．but

C．or

D．so

7 . —Who do you think was ________ student in our school talent show this year?
—Peter was, I think.

A．popular

B．more popular

C．the most popular

D．most popular

8 . The policeman said it was his careless driving that ________ the accident.

A．looked down upon

B．referred to

C．focused on

D．led to

9 . Several years after they said goodbye to each other, they met again__________ in Paris.

A．in this sense

B．by chance

C．early on

D．on the one hand

10 . Miss Li often tells us ________ an honest person.

A．to be

B．being

C．be

D．been