A.pay for B.lively C.invention D.alone E.necessary F.instead of

（1）I think the light bulb is the greatest

C

C

for human beings.
（2）Influenza A virus（甲流） goes crazy these days，wearing masks（口罩） is still

E

E

.
（3）My brother is such a

B

B

person that all of the family members like him.
（4）To protect the environment，we'd better take cloth bags

F

F

plastic bags when shopping.
（5）Wang Wei is so excited because his parents will

A

A

his trip to Dali.