Many language learners do not try to learn all new words they come across

25.Many language learners do not try to learn all new words they come across.

A.study     B.like     C.meet     D.understand

26.Electric cars are better for the enironment.In addition,they can save money on petrol.

A.In conclusion     B.For example    C.Nevertheless     D.Furthermonre.

27.To an American,success is the result of hard-work and self-reliance.

A.devotion     B.industry     C.laziness      D.enthusiasm

28.Solar energy doesn't cause pollution,but it is not cheap.

A.expensive     B.effective       C.Commercial      D.possible.