29． Why are green plants and grass helpful?

A． Because they can hold the water．

B． Because they can stop the wind from blowing the earth away．

C． Because they can keep the earth wet．

D．All the above．

[单选题]29． Why do people like teleshopping?A． Because they like watching TV．B． Because they can do some shopping at home，C． Because they like the heavy traffic．D． Because they think the things on TV are good．

Many animals ____ green plants for their foodA. base onB. look forC. depend onD.

[单选题]Why was Mrs. Green surprised? __________ .A． Because her husband didn’t arrived the airport on timeB． Because her husband was still at the airport at 5 o’clockC． Because her husband didn’t want to go to London

[单选题]Why did the mother ask for Chinese green tea?A．she was tired of Indian teaB．she had a son working in China.C．she believed it had a curing effectD．she was fond of Chinese products,

[单选题]Why doesn’t the woman take the green T-shirt?（ ）A．It's too small．B．It’s too dark．C．It’s too expensive

[单选题]24． The reason why most plants can’t grow on the sandy beach is thatA． there isn't enough sunlightB． there is too much waterC． it is too crowded thereD． it has little food for plants

[单选题]29．A．watchB．watchingC．watchsD．watches

[单选题]29．A．skateB．swimC．surfD．dance

[单选题]29．A．SinceB．SoC．ThoughD．After

This is why decorating with plants, fruits and flowers-|||-__ (cany) special sig