Los Angeles Times reported that researchers may have found a way to ______ human life by changing certain genes, so that humans might expect to live twice as long.
| A．extend | B．preserve |
| C．multiply | D．transform |
. _____________ we’ll go camping tomorrow depends on the weather.
| A．If | B．Whether | C．That | D．Where |
____________ we can’t get seems better than ____________ we have.
| A．What; what | B．What; that | C．That; that | D．That; what |
Sarah hopes to become a friend of _____________ shares her interests.
| A．anyone | B．whomever | C．whoever | D．no matter who |
_____________ is a fact that English is accepted as an international language.
| A．There | B．This | C．That | D．It |
— Do you remember ____________ he came?
— Yes, I do, he came by car.
| A．how | B．when | C．that | D．if |