— What on earth are the police busy with?
— They have been looking into how the plane crash _______.
| A．came out | B．came up | C．came down | D．came about |
China has recently ______ its waters controls near the Diaoyu Islands to prevent Chinese fishing boats from ______ in the East China Sea．
| A．show up; attacking | B．taken up; having attacked |
| C．stepped up; being attacked | D．picked up; having been attacked |
The chairwoman had her office ______ during her absence, which she’d like to see ______ the following day.
| A．broken into; looked into | B．broken out; looking into |
| C．broken in; look into | D．broken off; to look into |
______ the meeting were the managers ______ each department of the company in Jiangsu province.
| A．Attend; in the charge of | B．Attending; take charge of |
| C．Being attended; taking charge of | D．Attending; in charge of |
The new government decided to encourage industries ______ technology, which was ______ biology.
| A．basing on; linked to | B．being based on; linking with |
| C．based on; linked with | D．to base on; linked |
A couple of young people went _____ the ship ______ their stolen necklace worth $5000.
| A．abroad; searching for | B．aboard; in search of |
| C．board; in their search of | D．broad; searched for |