1. The commuter can _________ facts.

　　A. gather and to store B. gather and stored

　　C. gather and storing D. gather and store (D)

　　2. The city was plagued by traffic congestion last year，_________.

　　A. but it isn’t this year B. but not this year

　　C. but it hasn’t this year D. but it hadn’t this year (A)

　　并列句型，前后一致 plague 混乱; traffic congestion交通阻塞;

　　时态要一致

　　3. The crewman switched on portable flashlights as the engineer _________ the scene.

　　A.has surveyed B. surve;C. was surveying;D. is surveying (C)

　　进行时态表将来;

　　4. We _________a solution to this problem by the end of this month.

　　A. must B. will C. must find D. can (C)

　　must的基本用法www.yingyusanji.com

　　5. The old woman neither _________anything when the policemen asked her about the accident.

　　A. replied nor say B. replied nor said C. reply nor said D. replies nor says (B)

　　前后时态要一致;

　　6. The boy _________at school.

　　A. was never behaved B. was never behaved himself

　　C. never behaved D. never behaved himself. (D)

　　behave 规矩，常与自身代词连用; 主动语态