_____ is well known to the world is that China has very top technology in space industry．
| A．It | B．As | C．What | D．Which |
It was necessary to _____ the factory building as the company was doing more and more business.
| A．extend | B．increase | C．lengthen | D．magnify |
On turning the corner, we saw the road _____ steeply.
| A．departing | B．decreasing | C．descending | D．depressing |
There are three basic ways of _____ language to writing, and all known graphic systems use one or a combination of these.
| A．committing | B．attaching | C．comparing | D．relating |
I hope my teacher will take my recent illness into _____ when judging my examination.
| A．regard | B．account | C．thought | D．observation |
Your essay is quite good: just _____ it _____ with a few illustrations and quotations.
| A．put .. up | B．touch .. up |
| C．cut .. out | D．write .. off |