Stephen Hawking believes that the earth is unlikely to be the only planet life has developed gradually．
| A．that | B．where | C．which | D．whose |
Most environmental problem exist because___measures for preventing them were not taken in the past
| A．adequate |
| B．enough |
| C．many |
| D．much |
He talked happily about the men and the books___interested him greatly in the school
| A．which |
| B．that |
| C．who |
| D．when |
—Do you have anything in mind___you’d like for supper?
—Well,___is okay with me
| A．that;anything |
| B．which;everything |
| C．what;nothing |
| D．whether;something |
I refuse to accept the blame for something ___was someone else’s fault
| A．who |
| B．that |
| C．/ |
| D．which |
I always associate the smell of baking___my childhood
| A．with |
| B．to |
| C．on |
| D．of |