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 |
He was late for the meeting because the bus he took ______ halfway.
A.broke in | B.broke down | C.broke out | D.broke up |
Most of the big hotels in Shanghai were full last week, But finally we ______find a room in a small one.
A.ought to | B.could | C.were able to | D.might |
Tom has been out of work for two years, so he has difficulty______.
A.earning living | B.earning his living | C.to earn livings | D.to earn his living |
This is one of the few best films ______ highly thought of by the public.
A.which is | B.that are | C.that is | D.which are |
After living in the city for 10 years he returned to the small village ______ he grew up as a child.
A.which | B.where | C.that | D.when |