__________ it’s very difficult, remember not to give up until the last minute.
| A．Until | B．Unless |
| C．Although | D．Since |
—What’s this in English?
---It’s a CD.____CD is blue.
A.a B. An C.The D.\
Have a look ________ my white shoes.
| A．on | B．in | C．at | D．\ |
We can _____books ___ the bookstore。
| A．sell; to | B．buy; from |
| C．sell;from | D．buy; to |
How much are these shoes? _________ twenty dollars.
| A．Are | B．There | C．They’re | D．It’s |
Let Tom _________ now.
| A．watch TV | B．to watch TV |
| C．watches TV | D．watching TV |