I will have begun to do the work______ 3 0’clock this afternoon.
| A．by |
| B．at |
| C．after |
| D．before |
33. When a student asks_________it is worth staying up doing their lessons, a teacher may find it difficult to answer.
| A．that | B．what | C．whether | D．How |
32. ____from Adelaide to Darwin and you’ll observe some of Australia’s most beautiful landscapes.
| A．Traveling | B．To travel | C．Traveled | D．Travel |
31. It is in the year of 2010 a severe drought hits Yunnan province.
| A．until | B．that | C．before | D．When |
30.Mr. Li arrived at the Wuguang train station twenty minutes ago, but the train to Guangzhou________yet.
| A．hadn’t come | B．won’t come | C．hasn’t come | D．didn’t come |
29. To pass the driving test, Alice had a busy month______driving the car.
| A．to practise | B．practising | C．practised | D．Practise |