Not until all the fish died in the river how serious the problem of water pollution was.
| A．did they realize | B．they did realize | C．had they realized | D．they had realized |
Peng Liyuan has been wearing his designs for more than a decade, however, ________the brand, Peng’s support of Chinese labels has surprised millions of Chinese who favor foreign fashion brands.
| A．in terms of | B．in defence of |
| C．in place of | D．regardless of |
Your ______ as a student will be excellent if you develop a habit of reflecting on how you learn.
| A．performance | B．growth |
| C．operation | D．character |
---- Mary, I’m going to Paris for a couple of days?
---- _____. I wish I could get away for a while.
| A．Forget it. | B．I really envy you |
| C．Go ahead | D．I can’t agree more |
–I am leaving for Madrid tomorrow,Caroline.
--- _______
| A．Take your time | B．All the best |
| C．Well done | D．That's OK |
Cherish your life and keep away from drug! It is something at no time touch!
| A．you should | B．should you |
| C．you will | D．will you |