Experts warn that medical waste from hospitals, if properly, may contribute to spreading diseases．
| A．not handled | B．not being handled |
| C．not to be handled | D．not having been handled |
What _________ pity you didn’t go to ______ concert with us! It was so exciting!
| A．不填；a | B．a; the | C．a; 不填 | D．the; the |
—You cough so badly recently. Give up smoking, please!
—__________. I think I am addicted to it.
| A．Far from it | B．Good idea |
| C．So far, so good | D．It can’t be helped |
Clever marketing and hard work ________ —— the company’s profit hit a million dollars.
| A．took off | B．came about |
| C．carried out | D．paid off |
I don’t think we are facing a communication problem. _________ , we are communicating more smoothly than ever.
| A．In other words | B．On the other hand |
| C．On the contrary | D．At the same time |
It’s not what you have in your life but _______ you have in your life that matters.
| A．who | B．that | C．Which | D．what |