Whilebuildingatunnelthroughthemountain,_________.
A、anundergroundlakewasdiscovered__________takenmyadvice,you__________now.
Inthosedays,theoldwomansitatthegateforhours,waitingforhersontoreturnfromthefront.
Lily’sbagisblue,butisred.
—Excuseme.Doyouhavethetime?
—__________.
Isittheschool_________youusedtostudy_________theyvisitedyesterday?
