Before you____the design of this product, you need to study the market carefully．
| A．memorise | B．confirm | C．order | D．express |
It didn’t take the children long to________ the correct answer.
| A．carry out | B．figure out | C．turn out | D．give out |
_____ herself to science, the great scientist took little notice _____ the honors given to her.
| A．Devoted, of | B．Devoting, of | C．Devoted, about | D．Devoting, about |
The old couple, ____had been admitted to university, were living a hard life.
| A．both their children | B．both of whom children |
| C．both of whose children | D．whose their children |
--Has Peter handed in his paper yet?
---I’m not sure. He _______ on it last week.
| A．was working | B．has worked | C．worked | D．had worked |
The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.
| A．can’t | B．shan’t | C．needn’t | D．mustn’t |