The most expensive calls are usually ____ calls.

When you receive （） of the calls you should pay for your calls.

The most expensive calls are usually calls. A: local B: international C: cell phone D: telephone

Which of the following statements are correct? ( ) A: You can ask someone else to help pick up the fixed line calls or<br/>mobile calls. B: After the call is connected, first you should tell who you are. C: On special occasions, the mobile phone should be set to silence or<br/>vibration. D: You should not have personal calls in public places.

This program ______ your patience and confidence. A: calls for B: calls on C: calls at D: calls about

A good writing______clear organization and choices of words. A: calls on B: calls for C: calls up D: calls off

This matter ______ a cool head. A: calls off B: calls for C: calls on

Environmental protection（）everyone's support. A: calls for B: calls forth C: calls off D: calls up

It’s a situation that ________ a blend of delicacy （柔软） and force （力量）. A: A. calls on B: B. calls for C: C. calls off D: D. calls at

– Can I do the job? --- I’m afraid not, because it _______skill and patience. A: calls on B: calls out C: calls up D: calls for