______nature reserves _______us learn more about protecting animals.
| A．Studying ; help | B．Studies ; helps | C．To study; helping | D．Studying; helps |
Jim, ________ my teacher, Miss Li.
| A．it’s | B．these are | C．he is | D．this is |
---Are those your parents?
----________.
| A．Yes, they are | B．No, he isn’t |
| C．Yes, she is | D．No, she isn,t |
This is ________ apple.
| A．a | B．an | C．of | D．/ |
下面两个字母中含有相同音素的是________。
| A．SY | B．UW | C．WV | D．YZ |
This is ________ cup. ________ cup is yellow.
| A．a; A | B．an; An | C．a; The | D．an; The |