When you are going upstairs, please_____ your head.
| A．attend | B．notice | C．mind | D．observe |
What the boy enjoys _____ to have a room of his own.
| A．being | B．to be |
| C．is | D．are |
_________ he is, he has a wide range of knowledge.
| A．Although a child | B．While child | C．Child as | D．A child as |
_________ he is, he has a wide range of knowledge.
| A．Although a child | B．While child |
| C．Child as | D．A child as |
_________ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.
| A．Whatever; that | B．However; as |
| C．However; that | D．Whatever, which |
Difficulties and hardships have ________ the best character of the young geologist.
| A．brought in | B．brought up | C．brought out | D．brought about |