. The theory is of great important ________ the hotter a body is, the more it radiates.
| A．that | B．when | C．which | D．what |
As a result of the heavy snow，two-thirds of the buildings in the area A. need to repair B.needs to repair C.needs repairing D need repairing.
—It’s only ten minutes’ walk; I could have got there on foot.
— Yes. A taxi _______ not at all necessary.
| A．was | B．had been | C．has been | D．is |
It was about 5 o’clock in the afternoon _______ they had their supper.
| A．that | B．what | C．before | D．when |
His suggestion made me angry, but _______.
| A．making others happy | B．to make others happy |
| C．others happy | D．his advice others happy |
_______ that he might lose his job, Peter always works extra hours to please his boss.
| A．Worrying | B．Having worried | C．Having been worried | D．Worried |