Some plants are so difficult to grow that they can only ______ in a perfectly clean environment.
A.communicate | B.exchange |
C.survive | D.afford |
Glad to see you back. How long _______ in Russia?
A.did you stay | B.have you stayed |
C.were you staying | D.have you been staying |
When the old woman died, it___ that she was actually very rich.
A.came to an end | B.went to light |
C.came to life | D.came to light |
—I have a favour to ask of you.
—______.
A.Go ahead | B.It’s a pleasure |
C.Help yourself | D.Ask, please |
It’s reported that a bus went out of ____ control on a highway _____ east of the city and crashed into a river.
A.the; the | B.不填; the | C.the; 不填 | D.不填; 不填 |
Medicine depends on other fields for basic information, particularly some of their specialized branches.
A.conventionally | B.obviously | C.especially | D.inevitably |