His uncle went abroad in 2010, and _______since.
| A．has not been heard of | B．had not been heard of |
| C．had not heard of | D．has not heard of |
She is very dear to us. We have been prepared to do it takes to save her life.
| A．whichever | B．however | C．whatever | D．whoever |
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 |