Please be careful ______ your study ______ now on.

The boy wanted to ride his father’s new motorcycle in the crowed street but his father told him .[ ]

Tom_____to several companies after he resigned his position as vice president, but he was rejected over and over again.

Where are you going to stay when you get to Shanghai—I may live _________ in a hotel _________ in a friend’s house.

Are all telephone numbersin the directory? -Yes,all Jane’s. [ ]