题目内容：

用括号里所给词的适当形式补全短文。

On April 1st, Mike decided1. (play)a joke on his friend. At lunch time he 2.(say) to Tom，“I think we3.(have) a science test this afternoon.” “A test？” said Tom，“Really？” “Yes，it's quite true．” said Mike. “When I was passing by Mr. Hill’s room, he4.(talk) with another teacher about a test. I think there 5.(be)a science test this afternoon.”

Soon almost all the students in Mr. Hill’s science class knew about it. They quickly went into the classroom and began6.(study). But not Mike. He was laughing to himself at his classmates. “What fools！” he7.(think), “April fools.”

When the class8.(begin), Mr. Hill said to the students, “Class, we're going to have a test today.”

Mike was9.(surprise). He10.(can not)believe his ears. When the students began to write on the paper, he had to think and think again.