Columbus ______ America in 1492. But he didn’t explore it.
A. looked for B. found out C. discovered
—Jim, get up right now, _____ you will be late for school.
—OK. Mom.
A. and B. or C. But
There was _____ at my home tonight. We all went out to the cinema.
A. somebody B. everybody C. Nobody
Mr. Zhao has taught in our school _____ 3 years ago.
A. since B. for C. /
It’s the first time I visit Mount Tai. I have _____ visited it before.
A. already B. yet C. never
—Jane, how long have you been in China?
—I _____here two years ago and I _____ in China for two years.
A. came; have been B. have been; came C. came; have gone
