In ancient times, dogs were mainly ______helping people hunt( 打猎) .Now they are more useful-they can help the blinds, search for the bad eggs,…

Linda,please _________how to get there and the cost of the trip. ——All right.I’ll make it at once.

Steven, we should ______ the bus at the next stop.

There are ________ of students in our school, but only ______ are girls.

Mr. Black built a nice house _______ a gift _______ his wife _______ show his deep love.[ ]