I will go to the science palace to morrow _____it doesn’t rain heavily.
| A．as if | B．in case | C．even if | D．so long as |
A study has proven old people who are ______eaters of fish during their youth lose fewer brain cells.
| A．regular | B．common | C．special | D．proper |
Miss Li ___ as a secretary for five years in the company, and now she is general manager of it.
| A．has served | B．had served | C．served | D．serves |
We’ll have to race the clock to complete the work on time.
| A．beyond | B．over | C．against | D．from |
So much progress _____ in the past few months that she now has no difficulty in making herself understood in English.
| A．did she make | B．has she made | C．she has made | D．she made |
Much to my, I’m unable to accept your kind invitation.
| A．fault | B．duty | C．guide | D．regret |