—She was late for the party.—That’s _________she had forgotten the exact time.
We haven’t settled the question of __________it is necessary for him to study abroad.
If there were no examinations, we should have ______ at school.
— If you don’t like the red coat, take the blue one.— OK, but do you have ______ size in blue? This one’s a bit tight for me.
With the development of the Internet, _______ communication is done by regular mail.
When they arrived at the school it was raining _______ harder.