you can call up a call centre and (1)______ about an(2)______that you placed through any(3)_______.

Then he gives a phone call to 3 _________ about it.

号召 A: call for B: call off C: call on D: call by

【单选题】The workers agreed to ____ the strike if the company would satisfy their demand.  A) call off B) call out  C) call to D) call on  A. call off B. call out C. call to D. call on 

There is the following function call statement: func(rec1,rec2+rec3,(rec4,rec5)); The number of actual parameters in the function call statement is ( ) A: 3 B: 4 C: 5 D: There are grammatical mistakes

I ______ Chinese to be gracious hosts.: call back|call up|call upon|call with

No one can _________ yesterday. A: call on B: call from C: call back D: call at

I ____ your office on my way to work. A: call at B: call for C: call in D: call on

Their idea was to get us to the strike at once.A. call at B. call off C. call in D. call for

I used to ____ my teacher when I was in Beijing. A: call in. B: call at C: call for D: call on