【2012贵州贵阳】 “Have you ever been to Tokyo?” “Yes, I ______ there twice. It’s a modern city.” A. have gone B. have been C. had gone
Robots in the future will be ______ in people’s homes.
Jack ran ______ to catch up with other students.
Please give him ____ to eat.
We are looking forward to ____ my grandparents soon.
We have ____ books in our school library.