If you go by ____ train, you can have quite a comfortable journey, but make sure you get ____ fast one.
| A．the; the | B．不填；a | C．the; a | D．不填；不填 |
She is very_______ about her success, though she’s achieved a lot.
| A．careful | B．certain | C．modest | D．anxious |
It took Joan a long time to _______ a new dress at the store.
| A．pick up | B．take up | C．take out | D．pick out |
The little boy won’t go to sleep_______ his mother tells him a story.
| A．or | B．unless | C．but | D．whether |
The boy______ between my sister and my brother is my cousin, Jack.
| A．sitting | B．sat | C．sits | D．to sit |
_____ to school this morning, I met a friend of mine.
| A．I was walking | B．Walking |
| C．While I walking | D．Walked |