_____ you can understand how the human body woks, you need to have some knowledge of chemistry
| A．As soon as | B．Though | C．So that | D．Since |
There________ many trees in front of my house now.
| A．is | B．are | C．was | D．Were |
How beautifully she sings! I have never heard _______ voice.
| A．the best | B．a best |
| C．the better | D．a better |
He is taller than _______ girl in his class.
| A．any | B．other |
| C．any other | D．another |
—Do you have enough men to carry these chairs?
—No. I think we need _______ men.
| A．another | B．other two |
| C．more two | D．two more |
—How far is the factory from here?
—It’s about 4 kilometres _______.
| A．far | B．long |
| C．away | D．near |