"What do you think of the book?" "Oh. excellent, it's worth _______ a second time."
| A．to read | B．to be read | C．reading | D．being read |
The nurse treated the naughty boy very kindly, but her patience _____ at last.
| A．used up | B．gave out |
| C．run out | D．was run out |
You can use a large plastic bottle, _____ cut off, as a pot to grow your plant in.
| A．the top is | B．with its top |
| C．whose top | D．the top of which be |
The boss _____ the workers how to do it, or the accident couldn’t have happened.
| A．can’t have told | B．ought to tell |
| C．could have told | D．mustn’t have told |
The reason _____ their failure you know is ______ they didn’t get fully prepared for the experiment.
| A．why…that | B．that…why |
| C．why…because | D．for…that |
Susan could be a very attractive girl but she ____ no attention to her clothes.
| A．had paid | B．paid | C．pays | D．would pay |