21. —I’m sorry I’ve spilt some tea on the table-cloth.
— , it will wash out.
A. Never mind B. Come on C. All right D. Go ahead
22. It is challenge for graduates to get job as unemployment is high nowadays.
A. the; / B. a; / C. a; a D. /; the
23. Over fifty passengers were injured in the accident, and every doctor was called to the scene.
A. convenient B. available C. beautiful D. conscious
