【推荐1】New iPhone went on sale on Friday with ________ bigger screen and 4G wireless technology, as ________ company seeks to keep its competitiveness(竞争力).

A．a ; a	B．a ; the
C．the ; the	D．the ; a

【推荐2】Mark has _____ good command of English. Therefore, he plays _____very important part in our team.

A．/; a	B．/; the
C．a; a	D．a; the

【推荐3】Mom, I lost ________diamond ring you bought for me as my birthday present. Could you keep ________eye out for it when you clean my bedroom?

A．a; an	B．a; the
C．the; an	D．the; the

【推荐1】Look! There is _______ over there. Do you know him?

A．a 8-year-old boy	B．an 8-year-old boy
C．a 8-years old boy	D．an 8-years old boy

【推荐2】---How much orange juice do you want?
---I want                       、please.

A．a half bottle of

B．half a bottle

C．a bottle of half

D．a bottle half of

【推荐3】Jane has made _________ progress in Chinese with the teacher’s help and her own hard work.

A．disheartened

B．remarkable

C．abstract

D．primeval