Our bad living habits will destroy the earth．Only by changing ______ we live can we save the earth．
| A．that | B．what | C．how | D．where |
Chemical processes _______in the treatment of materials for clothes _______the environment badly in some countries nowadays．
| A．involve；damaging | B．involved；damaged |
| C．involving；damage | D．involved；damage |
.In the last ten years she _____ like this; she is killing her health.
| A．has worked | B．has been working | C．worked | D．is working |
She did not take the advice that she ___ at rush hour, so she got lost.
| A．not travel | B．did not go | C．should travel | D．goes shopping |
Jasper is a great painter. He is _____ Picasso.
| A．as a great painter as | B．as great painter as |
| C．as great a painter as | D．so great a painter as |
Men of this kind _______; we’d better ________.
| A．is dangerous; keep away | B．are danger; keep away from him |
| C．are dangerous; keep away from them | D．is in danger; keep away |