Cho dạng đúng của động từ trong ngoặc ở thì hiện tại đơn. 1. Nurses and doctors (work)___________ in hospitals. 2. This schoolbag (belong)___________to Jim. 3. ___________the performance (begin) ___________at 7pm? 4. Sometimes, I (get)___________up before the sun (rise)___________ 5. Whenever she (be)___________in trouble, she (call)___________me for help. 6. Dogs (have)___________eyyesight than human. 7. She (speak) ___________four different languages. 8. The Garage Sale (open)___________on 2nd of August and (finish)___________on 4th of October. 9. She (be) ___________ a great teacher. 10. Who ___________ this umbrella (belong) ___________to? 11. Who (go)___________to the theater once a month, 12. James often (skip)___________breakfast. 13. I rarely (do) ___________morning exercises. 14. My cousin (have)___________a driving lesson once a week. 15. My father and I often (play)___________football with each other.