Don’t promise anything ______ you are one hundred percent sure.
| A．whether | B．after | C．how | D．unless |
The company has offered me a job, _________ needs great care and technique．
| A．it | B．that | C．the one | D．one that |
The plane ________ at 8:30 am, so I ________ home at 7:00 tomorrow morning.
| A．leaves; leave |
| B．leaves; am leaving |
| C．is leaving; am leaving |
| D．is leaving; leave |
High school is _______ time of discovery and learning, and it is also _______ very enjoyable and valuable experience for every one of us.
| A．a; a | B．a; 不填 |
| C．不填; a | D．a; the |
— Why not go on a picnic? It’s going to be sunny this Sunday.
— ________ . I’d love to.
| A．I can’t agree more. | B．I’m afraid not. |
| C．I don’t like picnic. | D．I don’t think so. |
The process is essentially ________ with ideas and feedback flowing both ways.
| A．particular | B．concrete |
| C．ambiguous | D．dynamic |