找出题目中字母所含元音音素不同的选项：
|
|
|
|
|
Lily and Grace are my best friends. ________ of them are very smart.
| A．All | B．Both | C．Some | D．Any |
—________ I use your pen?
— Sure. Here you are.
| A．Must | B．Need | C．May | D．Should |
—________ are we going to meet?
— In front of the shopping center.
| A．When | B．Where | C．How | D．Why |
The beach is not as ________ as it used to be. Let’s collect the rubbish.
| A．clean | B．cleaner |
| C．cleanest | D．the cleanest |
Put on your coat, ________ you may catch a cold.
| A．and | B．so | C．but | D．or |