If you don’t understand something, you may research, study, and talk to other people _______ you figure it out.
A.because B.though
C.until D.since
（2016·天津）The weather forecast says it will be cloudy with a slight _____ of rain later tonight.
A. effect B. sense
C. change D. chance
Facing up to your problem ________ running away from them is the best approach to working things out.
A.more than B.rather than
C.along with D.or rather
(2015·重庆) Like ancient sailors, birds can find their way__________ the sun and the stars.
A. used B. having used
C. using D. use
Caroline doesn’t have a gift for music, but she ________ it with hard work.
A.goes back on B.takes away from C.makes up for D.catches up with
It was________of Michael to inform us of his delay in case we got worried.
A.careless B.considerate C.patient D.Generous
