Mr. Wu arrived ______Shanghai ______ the afternoon of October 10th.
| A．at, for | B．in ,in |
| C．in ,on | D．to, on |
_______ 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 |
— What are you ____, Li Mei?
— My new skirt. I can’t ____it everywhere.
| A．finding; find | B．finding; look for |
| C．looking for; look for | D．looking for; find |