According to the data, China supplies more than 90 percent of the world’s rare earth metals, but its reserves only about one third of the world’s total.
| A．take up | B．build up |
| C．make up | D．polish up |
According to a new study by a British’s university , learning ______ second language can lead to ________ increase in your brain power.
| A．a ; the | B．不填；the | C．a ；an | D．the ；an |
To succeed in a difficult task ,______________.
| A．Persistence is needed | B．Persistence is what you need |
| C．One needs to be persistent | D．A persistent nature is needed |
Believe it or not,_________ you have, I’m always on your side.
| A．what great difficulty | B．how great difficulty |
| C．no matter what great difficulty | D．however great difficulty |
The cruel parents ______ because of ______ they had done to the little girl.
| A．got punishment; which | B．got punished; what |
| C．got punishing; that | D．got to be punished; why |
__ I do not know
what I ___________ without the suitcase you lent me.
__ Glad to have been of some help to you.
| A．would have done | B．would do | C．should have done | D．should do |