Do you know which city Mr Zhang has gone to part in the celebrations—Sure. He went to Shanghai with his secretary.

_______ basic first-aid techniques will help you respond quickly to emergencies.

Do you like tea or coffee—Coffee. I prefer coffee __________ milk.

Our class is________60 students while theirs________65 students. [ ]

he came in, she found a stranger ______ at theback of the classroom with his eyes ______ upon her