Lifting off at sunrise, the hot air balloon goes wherever the wind blow.
| A．may | B．must | C．need | D．should |
49. --- Does he study very hard at school?
--- Yes, he studies _____.
| A．very indeed hard | B．hard very indeed |
| C．very hard indeed | D．indeed very hard |
48. I will ask my father to telephone you _____ he comes back.
| A．hardly | B．suddenly | C．quickly | D．Immediately |
47. I'd like to go with you., I have to finish the report now.
| A．However | B．But | C．And | D．So |
46. Oh, you can’t go out now. It is raining very _____. You’d better stay here for a while.
| A．largely | B．bigly | C．greatly | D．heavily |
45. If the wind doesn’t _____ before three o’clock, we will not be able to take off today.
| A．do up | B．go down | C．go by | D．go out |