If there were no examinations, we should have＿＿＿＿＿at school．
| A．the happiest time | B．a more happier time |
| C．much happiest time | D．a much happier time |
In fact Peter would rather have left for San Francisco than ____ in New York..
| A．to stay | B．stayed | C．stay | D．having stayed |
Professor Wang , _______ for his informative lectures, was warmly received by his
students.
| A．knowing | B．known | C．to be known | D．having known |
________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 |
My train arrive in New York at eight o'clock tonight. The plane I would like to take from
there ______by then.
| A．would leave | B．will have left | C．has left | D．had left |