We _______ on this project for four hours. Let’s have a rest.
| A．are working | B．have been working | C．worked | D．had worked |
Hearing the noise outside, he hurried to _______ and went out.
| A．put on | B．wear | C．get dressed | D．be dressing |
The woman as well as her sisters _________ here for ten years.
| A．has lived | B．are living | C．have lived | D．is living |
The change in climate may _______ our health. We should take good care of ourselves.
| A．effected | B．affect | C．have effect | D．have affect |
The two brothers look much the same , but they have nothing ________.
| A．commonly | B．differently | C．in different | D．in common |
The farm _______once we worked has changed a lot.
| A．where | B．that | C．which | D．What |