Unit 4单元测试题第一部分: 英语知识运用 (共两节,满分45分)第一节:单项填空(共15小题;每小题1分,满分15分) 从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。1. In his fifties, Karl Marx found _ important to study the situation of Russia.A. thisB. thatC. itD. one2. Do you fancy going to see the film “Shrek the Third”?_. Ive got a lot of homework to do.A. Great, Id love to B. Well, I cantC. Of course D. I dont agree3. Ive got different results with the same experiment.Why _ it