Now _____ understanding of climate change is no longer limited to ____ small group of scientists or environmentalists.
| A．/ ; a | B．an ; a | C．the ; the | D．a ; / |
When I lived with my roommates in the university, we often talk into the night
| A．might | B．could | C．should | D．would |
Not until quite recently that language is closely related to culture．
| A．he realized | B．did he realize | C．had he realized | D．he did realize |
Many of friends British people make at school remain friends for life, so it is true that schooldays are “the best of life”.
| A．the；不填 | B．the; the | C．不填; the | D．不填；不填 |
__________ , she won’t talk to you after what you said to her.
| A．Surprising | B．Surprised | C．Not surprisingly | D．Not surprising |
_______ laws of motion are simple, motion, as we see it in the world about us, certainly is not.
| A．When | B． While | C．As | D．Even |