A.Check your number and call again.B.Tell the operator what has happened.C.Ask the ope
A.Check your number and call again.
B.Tell the operator what has happened.
C.Ask the operator to put you through.
D.Ask the operator what has happened.
B
解析:①细节题。如果打长途电话时拨错号了,打给接线员解释一下情况,接线员会再次帮你接通,故B正确。②if后面的内容是考点。