Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.
| A．since | B．before | C．after | D．when |
_______, I don’t like him at all, but it’s strange that he should be so popular among the kids.
| A．Fortunately | B．Personally | C．Lonely | D．Totally |
We should take some measures to______ wild animals______.
| A．protect ; from being killed | B．prevent; from killing |
| C．keep; being killed | D．stop; from killing |
There is just _______ much competition among countries to host the Olympics as ______ Olympic medals.
| A．as ; to win | B．as; winning | C．so; to win | D．so; winning |
When we talk about the cities in United States, the first ________comes into our mind is New York.
| A．one | B．city | C．that | D．which |
Gun control is a subject ________Americans have argued for a long time.
| A．of which | B．about which |
| C．with which | D．into which |