He gave me the phone number in order ______ contact him when we are in need of help.

Do you know the mansunglasses?— Yes. He’s Tony’s dad. [ ]

I met a friend of mine _____ in the street yesterday .[ ]

________of the land in that district________ covered with trees and grass．

When are you going to Hainan?—I am going there ___ June 8, 2011.[ ]