单项选择题

What can you do if the international line is engaged（）

A．Book a call.
B．Make a "person-to-person" call.
C．Call back outside office hours.
D．Keep on callin

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热门试题

单项选择题A group of top Chinese scientists will （）

A．visit the U. S. and Western Europe to improve the ties between China and them
B．come closer to the U. S. and Western Europe
C．close the door of China to the U. S. and Western Europe
D．improve the ties between the U. S. and Western Europe

单项选择题From the last news we do NOT know （）

A．the results of the two matches
B．the number of the teams which played last night
C．how many wins the BBS has had altogether
D．the Wingers has had one win and four defeats recently