A. There is some boat in the river. B. There are some boats on the river. C. There are some boat on the river
A. Sally is looking at a big ship. B. Sally is look at a big ship. C. Sally was looking at a big ship.
A. What they are doing ? B. What are they doing? C. What doing they are?
A. jump B. sleep C. wash
A. 轮船 B. 飞机 C. 桥