It’s easy to _____ this math problem.
A. work out B. find out C. look out
The old house with a garden ______ 80 years ago．
| A．built | B．build | C．was built | D．is built |
We can get more ______ about the international affairs on the Internet than before．
| A．information | B．message | C．notice | D．advertisement |
Ted told us ______ funny story, but he forgot ______ ending himself．
| A．a ; / | B．/ ; an | C．a ; a | D．a ; the |
— Look at the sign on the right.
— Oh, parking here.
| A．isn’t allowed | B．doesn’t allow |
| C．wasn’t allowed | D．is allowed |
There _______a river in front of my house.
| A．used to have | B．was used to be | C．used to be | D．was used to being |