become的过去式和过去分词

It soon became apparent that no one was going to come.

很快就很清楚，没人会来。

In the 1990s the area became a magnet for new investment.

这个地区在20世纪90年代成了新的投资热点。

She only became coherent again two hours after the attack.

她发病两小时之后才恢复了清楚地说话的.能力。

The judge's decision became a legal talking point.

法官的判决成了法律界谈论的中心。

It soon became clear that the programme was a failure.

没多久便可清楚地看出，这个节目不受欢迎。