With the successful launch of Tiangong-I, which was ______ breakthrough in space field, China's space dream took a step closer to ______ reality.

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

My partner wants to keep the company small _____ I’d like to expand it.

A. andB. orC. howeverD. while

My opinion is ________the same as yours.

A. and so on B. on the other hand C. at risk D. on the whole

They hope to turn our society into one ______ those in need can get help.

A. where B. which C. when D. who

My friend Jack was the first person I knew ______an iPhone 5S.

A. using B. to use C. used D. having used

We can hardly believe such a young boy ______ travel around the world all by himself.

A. may B. need C. should D. must

The tourists, had enjoyed themselves so much in the botanic garden, were worn out

A. all of what B. all of which C. all of them D. all of whom

We must soon ______a new teacher to the class.

A. adapt B. appoint C. exchange D. abuse

This advertisement is a/an______ example of their marketing strategy

A. average B. specific C. typical D. flexible

. It is none of your business ______ other people think about you. Believe in yourself.

A. howB. whatC. which D. when