Whilebuildingatunnelthroughthemountain,_________.
A、anundergroundlakewasdiscovered
B、therewasanundergroundlakediscovered
C、alakewasdiscoveredunderground
D、theworkersdiscoveredanundergroundlake
Inthosedays,theoldwomansitatthegateforhours,waitingforhersontoreturnfromthefront.
A、could
B、would
C、might
D、should
Raising_______retirementageinprogressivestepsisin_____linewithChina’slabormarketrealitiesandshouldbeprioritized,anofficialsaidTuesday.
A、the;/
B、/;the
C、/;/
D、the;the
Payattentiontoroadsignwhiledrivinginforeigncountry.
A、a;a
B、the;the
C、the;a
D、a;the
Isittheschool_________youusedtostudy_________theyvisitedyesterday?
A、that;that
B、which;that
C、inwhich;which
D、where;that