— Is it OK if I take this seat?
—Sorry,___________.
| A．here you are | B．take it | C．it is taken | D．never mind |
--- I will go to your place at 3:00 tomorrow afternoon.
--- I’m sorry, but I ______ to Beijing by then.
| A．am flying | B．have flown | C．will have flown | D．will fly |
If you ______ the chat room ten minutes ago, you _______ what we were talking about.
| A．have joined ; will know | B．had joined ; would have known |
| C．should join ; would know | D．would join ; have known |
Americans have something _______ Thanksgiving, a festival which celebrates the first harvest of the settlers who _____ from Europe to the USA.
A. calling ; goes B. calls ; going C. which called; gone D. called ; went
. _____ to Beijing, I would visit the Forbidden City where the emperors once lived.
| A．If should I get | B．If I would get | C．Should I get | D．If I get |
This is not my car. It _________ one of my friends.
| A．is belonged to | B． belongs | C．belongs to | D．is belonging to |