—There are two _________students in our school.

—Yes, and about four_______ the students are league members.

A.thousand; hundred of B. thousand; hundreds of

C. thousands; hundreds of 　　　　　　　　D. thousands; hundreds

There are ________ of students in our school, but only ______ are girls.

       A. hundreds, two hundred         B. hundred, two hundreds

C. hundreds, two hundreds           D. hundred, two hundred

 There are _____ of students in our school but only _____ students are girls.

       A. hundreds; two hundred         B. hundred; two hundreds

       C. hundreds; two hundreds        D. hundred; two hundred

 There are _____ of students in our school but only _____ students are girls.

       A. hundreds; two hundred         B. hundred; two hundreds

       C. hundreds; two hundreds        D. hundred; two hundred

There are ________ students in our school, ________ students are girls.

A. four hundreds of; two hundred

B. four hundreds of; two hundreds

C. hundreds of; two hundred

D. hundreds of; two hundreds

There are ________ students in our school, ________ students are girls.

[　　]

A．four hundreds of; two hundred

B．four hundreds of; two hundreds

C．hundreds of; two hundred

D．hundreds of; two hundreds

How many plastic bags do you use every day? 46 there any chance for us to live without them? What can we do to have 47   plastic pollution? A performance in Hangzhou makes people   48  more about the overuse of plastic bags in our lives.

In front of a supermarket in Hangzhou , five volunteers 49  white plastic bags and walked around and through the crowd. The performance   50  people to use more cloth bags  51     plastic ones.

Some of the plastic bags worn by the performers were collected from customers in two food markets and 52  were collected by 700 students from a middle school.

On that day, when leaving the food markets, customers were told to hand over 53  plastic shopping bags. 54  plastic bags were collected in two hours.

“ If we do 55  about it, the earth will be eaten up by white pollution. And 56  will become ‘plastic men’,”said one of the performers.

“How can you breathe in 57  plastic bags?” A   58   woman asked one performer.“How can the earth breathe 59   there are too many plastic bags?”the performer answered.

Starting in June 2008,plastic bags were 60  given for free in supermarkets,shopping malls or food markets all over the country.

People are called on﹙号召﹚to use cloth bags when they go shopping.