helicopter can take off and land straight up or down, and can also sta
题型:不详难度:来源:
helicopter can take off and land straight up or down, and can also stay still inair.
A.The; an
B.A; the
C.A; 不填
D.The; 不填
答案
B
解析
略
举一反三
The foreign guests who paid a visit to our city last week are greatly impressed by the fact that_______ people from all walks of life are working hard for_______ new Haimen.