--- May I smoke here?
--- If you ________, do it in the smoking section.
| A．need | B．must | C．may | D．will |
---Lucy, read this book I____ that you’ll be fond of it.
---OK. I’ll read it after I have finished my homework.
| A．order | B．guarantee | C．prove | D．reveal |
The cells of humans, especially _____of the brain, can live only minutes without circulating blood.
| A．that | B．ones | C．it | D．those |
You may use the room as you like,______ you clean it up afterwards.
| A．as though | B．so long as |
| C．now that | D．as far as |
The country life he was accustomed to________ greatly since 1992.
| A．has changed | B．change | C．changing | D．have changed |
Had you listened to the doctor, you _______ all right now.
| A．are | B．would be | C．were | D．would have been |