We were watching TV ________ a stranger came in.

[　　]

The man ________ was his brother, who had left home ten years before.

[　　]

When winter comes the temperture ________ 30℃ at night here

[　　]

The two brothers look alike. You can hardly ________him from his brother.

[　　]

Five sixths of the students are not Chinese, but ________.

[　　]

A．the else is

B．others are

C．the rest are

D．the other are

Can you repair the chair ________ way as the teacher does?

[　　]

The woman began to take up struggles ________ the rights ________the government.

[　　]

 What do you mean________ saying that?

I  mean I can't find a better way ________protecting the dam.

[　　]

A．by, for

B．for, of

C．by ,of

D．to, from

There are twenty students in our class, ________ are boys.

[　　]

 How much exercise is enough for people each day?

 It's hard to say, because the health condition is different ________.

[　　]

A．from area to area

B．from person to person

C．from time to time

D．a great deal