阅读理解，选择正确的答案。

      My name is Mike. Tomorrow is the weekend. We have no classes. My parents aren't going to work, but

we are going to be very busy tomorrow. My mother is going to buy something for next week. My father is

going to visit my grandparents. I'm going to play football with my friends. Tomorrow evening, we are going

to have a big dinner. After that, I'm going to the cinema. I think we are going to have a nice weekend.

1. Mike has ____________ classes on the weekend.

A. 4

B. no

2. Mike's ____________ is going to visit Mike's grandparents.

A. father

B. mother

3. Mike is going to play ____________ with his friends. 

A. basketball

B. football

4. They are going to have a big ____________ tomorrow evening.

A. lunch

B. dinner

5. Mike is going to the ____________ tomorrow evening.

A. cinema

B. library

涂料产生凝聚的主要原因是（）所造成。

A.涂料调制不当

B.生产配料不当

C.贮存保管过失

D.溶剂小合格