o friends had a quarrel about money,but shortly afterwards they shook hands and ________.

下列句子中没有语病的一项是（ ）

Now many people are________ in playing_______ games on the Internet.

______full preparations, they thought it better to put off the conference till next week.

The manager has come back from his business trip. He is asking you for the report.— Oh，my god ! I haven’t finished it yet. But he ________ back at the company tomorrow.