353. A Brazilian mask (面具) maker has finished two models of masks of Iraqi ex-president Saddam Hussein , one of him in power and one of him when ______ by U.S. soldiers .

A. caught　　 B. catching　　 C. to be caught　　 D. to catch

352. A cook will be fired immediately if he is found ______ in the kitchen .

　 A. smoke　　 B.　 smoking　　 C. to smoke　　 D. smoked

351. The clouds are gathering in the sky as if it ______ to rain .

　 A. were　　 B. were going　　 C. is going　　 D. went

350. That’s a task calling for great ________ and patience .

A. courage　　 B. encourage　　 C. brave　　　 D. discouragement

349. The soldiers were ordered to shoot the enemy ______ .

A. on sight　 B. in sight　　 C. within sight　　 D. I seen

348. He reads the children a story to ______ them _______ .

A. calm ; down　　 B. take ; down　 C. get ; down　 D. put ; down

347. ________ the airport , he was arrested by the police .

A. As soon as arriving　 B. Upon he arrived　 C. On arriving　 D. Upon arrival at

346. In the evening , he ______ in his book .

A. reads him　　 B. reads himself　　 C. buries him　　 buries himself

345. The other day , we saw an accident on the road .Jack ran for a doctor immediately ; ______ I stayed with the wounded person .

A.　 therefore　　 B. meanwhile　 C. so　　 D. however

344. They urged that the library ________ during the vacation .

A. be kept open　　 B. would be kept opening　 C. to be kept opened　 D. was open kept