3. A: There are lots of buses next to that building(建築物).What is it?B: It’s a bus _______ .(A) metro
2. A: What time is the ball game? B: It is _______ .(A) six o’clock (B) one thirty(C) six twenty (D)
3. A: What _______ ?B: They are playing with the toy car.(A) they are doing (B) they are do(C) are t