They had problems________across the river．
| A．walk |
| B．to walk |
| C．walking |
| D．to walking |
--- How do you like the program the Voice of China?
--- ______ amazing program it is! Many people like to watch it.
| A．What | B．How an |
| C．How | D．What an |
There are some dangerous fishes in this river, and I’ve warned Jack ______ here.
| A．not to swim | B．to not swim |
| C．swim not to | D．to swim not |
I don’t know if he ______ to the English corner, but I’ll ask him about that when he ______ to the class.
| A．goes, will come | B．will go, will come |
| C．goes, comes | D．will go, comes |
Try to sing more Korean songs, and you will find it interesting ______ a foreign language.
| A．learning | B．learns | C．to learn | D．learn |
Teachers ask us to remember that ______ careful we are, ______ mistakes we will make.
| A．the more, the fewer | B．the fewer, the more |
| C．the more, the more | D．the less, the fewer |