Many people believe we are heading for environmental disaster _____ we basically change the way we live.
| A．but | B．although | C．unless | D．once |
The fact that she was foreign made ______ difficult for her to get a job in that country.
| A．so | B．it | C．that | D．much |
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 |