The teacher was angry about his being late for class, but he behaved ______ nothing had happened.
| A．as | B．even if | C．as if | D．even though |
The books sold ________millions in one day, and the publisher had to print another ten thousand copies.
| A．with | B．in | C．for | D．at |
--I think we are lost. I’ve no idea where we are.
--I wish we __________the map with us.
| A．bring | B．would bring |
| C．have brought | D．had brought |
The professor can answer almost any question __________we have about any history topic.
| A．as | B．that | C．why | D．where |
Due to the light pollution, stars are too faint _________with naked eyes in the urban area.
| A．observing | B．being observed |
| C．to be observed | D．to be observing |
--Why won’t you go to Jim’s birthday party with us?
--Well, I don’t like him, if you ________know.
| A．can | B．may | C．must | D．should |