帮解答几道划线部分提问的题,还有把一句句子改成否定句和疑问句....
划线部分提问:
1.They are walking over the bridge.
在"over the bridge"划线提问.
2.Sally is looking at a big ship.
在"a big ship"划线提问
3.Tim is looking at an aeroplane.
在"Tim"划线提问
改成否定句和疑问句:
1.The aeroplane is flying over the river.