Mary is a ______customer of that shop; That’s why sometimes she is given a small discount(折扣)
—Which one of these do you want? — __________. Either will do.
It was his first time to make a radio broadcast. __________, he walked towards the microphone.
—Did you enjoy yourself at the party? —Yes. I've never been to __________ one before.
He is very popular among his students as he always tries to make them __________ in his lectures.
My advisor encouraged __________ a summer course to improve my writing skills.