问题
选择题
. — I’d better ____ now. The water is boiling in the kitchen.
— Good-bye.
A．ring back
B．ring up
C．hold on
D．ring off
答案
答案：A
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. — I’d better ____ now. The water is boiling in the kitchen.
— Good-bye.
A．ring back
B．ring up
C．hold on
D．ring off
答案：A