My plan is _________ the Summer Palace next weekend.
| A．visits | B．visited | C．to visit | D．visit |
Yesterday I was late _____ school.
| A．in | B．about | C．for | D．with |
_______ you free tomorrow afternoon?
| A．Do | B．Am | C． Is | D．Are |
His mother wants him ___ at home today.
| A．stays | B．stayed | C．to stay | D．staying |
I am very happy______ your letter.
| A．receive | B．to receive | C．received | D．receives |
My mother has been a Chinese teacher __about twenty years.
| A．in | B．to | C．for | D．with |