He told me that he was very familiar _______ the surroundings there and I told him that thepeople there were familiar _____ me

_____ can people communicate with each other if they can’t speak — By using _____.

Liu Qian is good at doing the tricks with the cards.—Yes, but if you watch carefully, you can see _______he does them.

The mother waved to her daughter until the train .

– He is thirty-two.