Onhearingagreatnoise,Mikelookedforwardthroughthewindow_____whathappenedoutsidetheroom.
A、toseeingThisrobotissupposedtosavealotoflabor,butitremainsaproblemifit______.
He doesn't know what to say, for it is the first time that he ______ with a girl.
It is the news ____ most parents of the hope that there is a safe and socially approved road to a kind of life they themselves have not had, but their children can.
Thereweremanymorepeoplewhogotinjuredinthebigfirethan_______.
I heard that you really had a wonderful time at John's birthday party, _____?
