－Have you got any particular plans for the coming winter vacation?
－Yes, _ , I'm going to visit my grandparents．
| A．if necessary | B．if so | C．if ever | D．if possible |
We hadn't met for 20 years, but I recognized her_____ I saw her.
| A．the moment | B．for the moment |
| C．the moment when | D．at the moment when |
________evidence that language acquiring ability must be stimulated.
| A．If being | B．It is | C．There is | D．There being |
The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.
| A．to be based on | B．to base on |
| C．which to base on | D．on which to base |
A survey was carried out on the death rate of those who were infected by SARS,________were surprising.
| A．as results | B．which results |
| C．the results of it | D．the results of which |
In recent years much more emphasis has been put______ developing the students productive skills.
| A．onto | B．in | C．over | D．on |