The tree _________ are green in spring. A. leafs B. leaves C. leaf
——Excuse me.——____. A.Sorry B. OK! C. Yes
A business man works in a (an) ______ A. office building B.restaurant C. market
Red is ___ . A. wait B. stop C. go
——Where are you going?——___ the office. A. From B. Beside C. To
——___ is the gym?——I can show you. A. What B. How C. Where