Whilebuildingatunnelthroughthemountain,_________.
A、anundergroundlakewasdiscovered——What’sthematterwithyou?
——thewindow,myfingerwascutunexpectedly.
I always prefer starting early _______ leaving everything to the last minute.
Payattentiontoroadsignwhiledrivinginforeigncountry.
My goodness! What happened? You have blood on your face.
—_________ I just killed a pigeon.
Why don ’t you ask him _____ help?
