单项选择题The bright plumage of many male birds has () to attract females.
A.evolvedB.grownC.developedD.advanced
单项选择题Scientists ()the animals’ environment in order to study them.
A.duplicateB.imitateC.remakeD.reproduce
单项选择题Fifteen is a little young to()a serious long-distance relationship.
A.talk down toB.be pressed intoC.be convinced ofD.be involved in
单项选择题Our English teacher always emphasizes the importance of learning new words in context rather than learning each of them().
A.individuallyB.exclusivelyC.approximatelyD.supposedly
单项选择题He()the bottle he put on the top of the shelf on Friday,but couldn’t find it.
A.reached forB.arrived atC.figured outD.dealt with