He chose to teach in a western province, though he _______ in the city for a better life.
________ I close the window? It's so cold here.
I bought a new dictionary and it ________ me 30 yuan.
--Must I clean the room now? --No, you __________.
It is better to teach a man to fish than ________ him fish.
.--How long have you ________there? --About four years. ~