Task 1: Correct form of to be (am/is/are)
1. I (be)......... a teacher.
3. This (be)......... my classroom.
5. What (be)..
..... this?
7. My name (be)......John
8. How old (be)........ your brothers?
9. (be)
....you twelve years old?
10. (be)
these your pens?
...Lan and Nam in the clas ...
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