Darkness before the traveler could find shelter for the night.
| A．set in | B．set down | C．set against | D．set forth |
Cell phones _______ by more and more teens and many new functions _______ to them nowadays.
| A．are using, have added | B．is used, are adding |
| C．are being used, have been added | D．being used, were added |
--- The couple _______ after 10 years’ marriage.
--- What a pity. Their child may suffer a lot from this.
| A．broke out | B．broke down | C．broke up | D．broke into |
--- I need some fresh air, so I’m going out for a walk.
--- _________.
| A．Have fun | B．With pleasure | C．You’d better not | D．It’s none of my business |
—Shall I help you?
—Sure. Such a difficult case is ______ I could handle myself.
| A．rather than | B．less than | C．or rather | D．more than |
Everyone likes to develop a close relationship ______ we trust each other.
| A．which | B．that | C．where | D．when |