―Was the doctor there when you arrived? ―Yes, but he ______ out a moment later.
Sentences can be ________ into clauses, and clauses into phrases.
I gave him a present but he gave me nothing ________
October 1st, 1949 is the day ________ the People’s Republic of China was founded.
It doesn’t make any difference how we get there because we’re going to be late________.
We don’t doubt ________ our team will win because we are the best.