American women usually identify their best friend as someone __________ they can talk frequently.
Hurry up! The train ______. You know it ______ at 8:30 am.
The head teacher insisted that every minute ______ made full use of ______ for the mid-exam.
Hangzhou marathon is a race _______aim is to help people know the importance of taking exercise.
At the meeting, the old man ______some good advice and all the people there agreed with them.
Was it on the train “ Harmony” ______ John met with his girl friend?