I. fill in the blanks with the correct form of verbs given in the brackets.
1. someone (knock) at the door.
2. good boys (obey) their elders.
3. water (boil) at 100°c.
4. birds (fly) in the air.
5. i (receive) your letter yesterday
. 6. my father (leave) for mumbai tomorrow.
7. the child (cry) because it cannot find its mother.
8. my mother (teach) in a college. she (go) there in the morning.
9. he (go) to shimla tomorrow.
10. thomas edison (invent) the electric lamp in 1879.
11. the clouds (move) across the sky. 12.
sita (talk) gently with everyone.
13. it seldom (rain) here in february.
14. the horse (gallop) across the fields.
15. when i (go) to see him, he (sleep).
16. i (attend) the meeting tomorrow.
17. cricket (originate) in england.
18. i (try) to solve this sum.
19. he (study) hard these days.
20. i (write) a new book. i (hope) to finish it by the end of this month.
21. it was cloudy in the morning, but the sun (shine) now.
22. our country (make) steady progress under the present government.
23. it (rain) when i left the house.
24. don’t disturb me. i (do) my work. ii

. fill in the blanks with the correct form of verbs given in the brackets.
1. once upon a time, three thieves, who (steal) a pot of gold in a distant town (return) to their village. they (pass) through a small town when it (grow) dark. their village (be) still a long way away. each of them had a doubt, “) it safe to travel through the forest with all this gold? ” 2. air and water (be) necessary for life. air (contain) oxygen which we inhale. we (release) a gas called carbon dioxide, which (consist) of carbon and oxygen. trees (act) as our friends because under sunlight, they (break) carbon dioxide into two components and (consume) carbon which (be) the basis of the food for all the plants. 3. i (employ) a new servant, hari. he (be) quite obedient, hardworking and submissive but sometimes, he (behave) very strangely. last evening, i was alone. i (hear) his cries and ran towards him. he, at once, (stop) crying. he had not been actually crying, he (pretend). i (scold) him for his strange behaviour.