_______, water changed into steam.
| A．Heated | B．Heating | C．Being heating | D．to heat |
It is very kind _______ you to help me with my housework. It is hard _____me to do all
the work.
| A．of, for | B．for, of | C．of, to | D．to, for |
Many people think it very difficult _______ English.
| A．to say | B．to learn | C．speak | D．for speaking |
The teacher asked the students __________ her _______ the word again.
| A．listen to; to read | B．to hear; say |
| C．to listen to; speak | D．to listen to; pronounce |
Remember ______ the book here tomorrow.
| A．bring | B．to bring | C．take | D．to take |
---Let's have a rest, shall we?
--- Not now. I don't want to stop _______ the letter yet.
| A．write | B．to write | C．writing | D．and write |