David didn’t give up ______ he had failed in the experiment four times.
| A．if | B．while | C．though | D．since |
The two pencil boxes are the . They are .
| A．twin’s ; Lucy and Lily’s |
| B．twins’ ; Lucy’s and Lily’s |
| C．twin’s ; Lucy’s and Lily’s |
| D．twin’s ; Lucy’s and Lily |
The little boy is but he can speak Chinese.
| A．English | B．an English |
| C．America | D．come from England |
—apples do you want to buy?
— Ten, please. Andare they?
| A．How much ; how much | B．How many ; how many |
| C．How many ; how much | D．How much ; how many |
—Would you like orange ?
— Yes, I’d like to have .
| A．a ; an | B．an ; an |
| C．a ; one | D．an; one |
Tom plays basketball because he doesn’t like it.
| A．often | B．usually |
| C．never | D．sometimes |