---Mr. White didn’t come last night, did he? ---No. We for him. A whole night was wasted. A. had waited B. have been waiting C. were waiting D, had been waiting
______ as an Olympic event, a sport must be played in at least 75 countries in at least 4 continents.
At the meeting they discussed different ______ to the study of mathematics.
The children were warned of not being too _______ about things you are not supposed to know.
I keep in touch with the friend ______ who stands ______ to me.
Encourage your children to try new things, but try not to ____ them too hard.