---Fifty dollars for such a T-shirt！You_____ be joking！
--- I’m serious. It’s made of silk.
| A．must | B．need | C．may | D．can |
You can’t throw the waste everywhere. You should keep the classroom _________.
| A．quiet | B．neat | C．orderly | D．bright |
The more you _____ things to chance, the less chance there is for you.
| A．leave | B．have | C．take | D．put |
After all, not even _____ speakers of English find it easy to do some reading aloud correctly in RP (Received Pronunciation).
| A．national | B．native | C．natural | D．non-stop |
If the boy had _____ the dog alone, it wouldn't have bitten him.
| A．put | B．set | C．left | D．led |
The gate is too ________ for a car to pass through..
| A．wide | B．high | C．narrow | D．neat |