问题

People have planted a great many trees in order to________wind and sand in the desert.[ ]
A:hold down
B:hold upIMG style="WIDTH: 1px; HEIGHT: 1px; VERTI
C:hold back
D:hold out
B:hold upIMG style="WIDTH: 1px; HEIGHT: 1px; VERTI
C:hold back
D:hold out
正确答案是:
同类题型
So badly ______ in the car accident that he had to stay in hospital for several months.[ ]
Would you like to come to dinner tonight?—I’d like to, ___ I’m too busy
The old lady likes to keep things in the house, _____ throw them away, though many are useless.