--- Is this your white ruler ? --- No. _______ is yellow.A. My B. Mine C. Her.
I told Tony the exciting news__________ he came back home last night.
---- It’s very important for everyone to exercise. do you exercise?----Three or four times a week.
---- Is that girl Susan?---- It ______ be her. She left for Beijing yesterday.
----Shall we go to the amusement park this Sunday, mum?---- Sure, ________ I am busy.
This is the third time the famous scientist __________ the United States.