Unit 9 Wheels Period Three Grammar 课时精练（北师大版必修3，课标通用）
1．Tom in the library every night over the last three months. (2011·北京)
A．works B．worked
C．has been working D．had been working
解析 考查时态，题干中出现的over the last three months，用于现在完成进行时或现在完成时。
答案 C
2. The coffee tastes wonderful ! It doesn't taste like anything I before.( 2011·全国)
A．was having B．have
C．have ever had D．had ever had
解析 句意：这咖啡味道很好！我以前从来没有喝过这样的东西。根据句意应该用现在完成时。
答案 C
3．Every year a flood of farmers arrive in Shenzhen for the moneymaking jobs they
before leaving their hometowns. (2010·福建)
A．promised B．were promised
C．have promised D．have been promised
