_______ the teachers in their school is about 200 and one fourth of them are _______ teachers. 

He didn’t go to school yesterday ________ he was ill.

 They will lose the game _______ they try their best.

 ---Which is the biggest number of the four?   ---________.

The bread smells _________ and it sells ________.

---Is this _______ ruler?---No. _______ is over there.

---How was _______dinner at Mike’s house?---It was great. Mike’s mum is _______ wonderful cook.

Spend more time talking with your parents, _______they may not well understand you.

 You can take_______ of the two toy cars and leave the other for your brother.

_______the sun was not yet up, many people were already taking exercise in the square

If my frirends have any problems, my door is ______ open to them.

—It's so late. Why not write the report tomorrow?—But I don't know _______ I can do it if not now.

—More and more people come to visit Mount Huangshan—That's true. It has become the_______ of Anhui.

 —I forgot to bring my dictionary. Could I use yours?— Yes, you _______.

It is ______ for me to follow the Australian guests because I am good at English.

Nowadays scientists are working hard to find out ______ to do with air pollution.

---Is breakfast ______________ meal of the day?---- Yes, it provides us with energy after a long night.

--- ______________ is it from your home to the science museum? ---It is about ten minutes' bus ride .

Water is very important for us and no one can live ______________ it.

---I'm afraid I can't walk to Quancheng Square . It's too far. --- You can ride ___________ bike.