I. Complete the sentences with the correct form of be :
1. is 5. are
2. is 6. are
3. is 7. is
4. is
II. Complete the sentences with the correct form of be:
1. am 2. is 3. is
4. am 5. is 6. is
7. am 8. is 9. am

Soạn giả : vip.minhthu.pro
Tư liệu tham khảo:
Betty Schrampfer Azar . Understanding and Using English. 3rd ed.
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