. His article deals with the life of a rare animal ________.
| A．and most people didn’t know existed | B．that most people didn’t know it existed |
| C．most people didn’t know existed | D．that most people didn’t know existed |
My father ____ for Beijing on business tonight.
| A．is about to leave | B．has been leaving |
| C．is leaving | D．would leave |
This is the first time that he your hometown.
| A．visited | B．visits |
| C．had visited | D．has visited |
The hero said he didn’t think twice ____ diving into the freezing river to rescue that child.
| A．before | B．after | C．until | D．when |
—Have you some new ideas?
—Yeah. I’ll tell you later.
| A．come about | B．come up |
| C．come out with | D．come up with |
A new stadium _______ next year, for an international tennis game will be held in this city.
| A．will build | B．will be built |
| C．has been built | D．has built |