The CDs are on sale! Buy one and you get _____ completely free．
| A．other | B．others | C．one | D．Ones |
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 |
---This physics problem is too difficult. Can you show me __________, Wang Lin?
--- Sure.
| A．what to work it out | B．what to work out it |
| C．how to work it out | D．how to work out it |