Chongqing ______ a lot in the past few years.A.has changed B. changed C. is changing
The trip is only two days from flow.We’d better a plan about it.
The thief was last noticed the office building by the back door on the screen.
The scientist devoted much time to on the 9roject that he succeeded in the end.
the sun was not yet up,many people were already taking exercise in the square.
The of some wild animals reminds us the problems on environment.