Polly said that he did everything ______ she could to comfort his sister who cried after being refused by Harvard.
| A．what | B．which | C．when | D．that |
Forests ________ and burned at such a speed that they will disappear from the earth in the future.
| A．cut | B．are cut | C．are being cut | D．had been cut |
—I’ve got a cough and my chest hurts.
—________.Let me examine you.
| A．Don’t mind |
| B．You should learn to protect yourself |
| C．Take it easy |
| D．Keep calm.You will recover soon |
What I need is ________ book that contains ________ ABC of oil painting.
| A．a；/ | B．the；/ | C．the；an | D．a；the |
Sam insisted that he________ the law and________.
| A．didn’t break；mustn’t be punished |
| B．doesn’t break；shouldn’t punish |
| C．hadn’t broken；be not punished |
| D．hadn’t broken；not be punished |
—________ when has the country been open to international trade?
—1978，I suppose.
| A．Since | B．In | C．From | D．After |