Because the aircraft will finally end up in the water, it ______ be unsinkable and built entirely of environmentally friendly materials.
| A．can | B．may |
| C．must | D．Will |
He lost his way in the forest , but he managed to get through it_______
| A．completely | B．eventually | C．quickly | D．extremely |
It looks as if they are going to ______us a lot of money for the concert hall.
| A．demand | B．cost | C．charge | D．ask |
Do you know the reason ________he was late for the class?
| A．why | B．that | C．which | D．who |
---- What a hot day! Have you had a drink?
-----Yes, but I’d like to have _____ after class.
| A．it | B．another | C．that | D．one |
What a pity! I missed meeting my boss at the airport because my caron the way..
| A．broke up | B．broke into | C．broke out | D．broke down |