They were surprised that a child should work out the problem____ they themselves could not.
A．once B．unless C．while D．if
We missed the beginning of the football match. When we got to the stadium, the match ______.
A．would start B．has started C．had started D．was starting
The boy was very sick, but he managed to ______.
A．pull off B．pull out C．pull through D．pull up
The following morning we left the hotel early and _____ for the beautiful lake in the city.
A．headed B．eyed C．handed D．housed
John received an invitation to dinner, and with his work______, he gladly accepted it.
A．finished B．finishing C．having finished D．was finishing
Hurry up. I_____ for Korea to visit my uncle; The plane_____ at 10:00.
A．am leaving; will leave B．leaves; is leaving
C．am leaving; leaves D．will leave; is leaving
