John seemed puzzled about _____ the question meant.
| A．how | B．why |
| C．what | D．which |
She won’t be able to come next week, because she herself in Mount Tai then.
| A．enjoys | B．will be enjoying | C．is enjoying | D．enjoyed |
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 |
from Adelaide to Darwin and you’ll observe some of Australia’s most beautiful landscapes.
| A．Traveling | B．To travel | C．Traveled | D．Travel |
It is in the year of 2010a severe drought hits Yunnan province.
| A．until | B．that | C．before | D．when |
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 |