—What are those?-- are baseballs.
This problem worried her so much that she didn’t know ___________ with it..
It _______ ten years since my sister ______ an English teacher.
Could you tell us _____ you are getting on well with your classmates?
.----Look! Our Chinese teacher, Mr Zhang, is playing badminton there. ----No, it ________ be Mr Zhang,. He has gone to Guangzhou for a meeting.
____Tom ______ his friend know about types of personality.