阅读理解。

     Hello, I'm Johnson.  Today is Children's Day. I go (去) to a big supermarket with my friends Jeff and

Robert. We want to buy some presents (礼物) for ourselves (我们自己). There are lots of things in the

supermarket. I buy some strawberries. I like them very much. Jeff buys three red pens. And Robert buys a yellow ruler. We are very happy today.

1. Tonday is June _____.

A. second    

B. third    

C. first    

D. fifth

2. Johnson goes to a big _____with Jeff and Robert.

A. park (公园)    

B. zoo (动物园)    

C. supermarket    

D. school

3. Johnson buys some _____.

A. jackets(夹克衫)

B. pens    

C. bananas    

D. strawberries

4. _____ buys three red pens.

A. Johnson    

B. Johnson's

C. Robert    

D. Jeff

5. Is Jeff very happy today?

A. Yes, she is.    

B. Yes, he is.

C. Yes,is.    

D. No, he isn't.

链条炉排燃煤一般应提前掺入一定水分，含水率约（）

A.6%

B.10%

C.15%

D.20%