Have you asked her for the reason ________ may explain for her absence.

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He's like to sleep with the window ________ at night.

[　　]

For many Beijingers, dreams of living in ________ green area are becoming ________ reality.

[　　]

The cost of sales makes up a large part of the prices that ________.

[　　]

A．are paid for all products

B．all products are paid

C．for which all products are paid

D．for all products paid

It is not rare ________ in that people in ________ fifties are going to university for further education.

[　　]

－Would you mind ________ for the woman? She's carrying a baby in her arms.

－________.

[　　]

A．making room for; Of course not

B．make room for; Certainly

C．making a room for; Yes, I do

D．make rooms for; No, I don't

－Coffee ________ milk?

－Only milk, please, ________ I used to like coffee.

[　　]

When ________ the education system of China and Japan, the professor made no answer.

[　　]

－It looks ________ the merchant ________ rid of his fever.

－In actual fact, he is still very weak.

[　　]

－Nobody but John and Tom ________ still in the lab as I passed by last night.

－What on ________ earth ________ they?

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