What’s under the desk? ________.A.It’s a footballB.I can see a set of keysC.They are red box
I like the house in ________ I used to live.
The book ________ be Tom’s. Look! His name is on it.
---Come and join us. --- I’m sorry, but I’m busy. If I ________ time, I would go.
Martin was once ________ “problem student”, but now he’s one of ________ top students.
The book is very difficult. ________ read something easier?