下列能被碱性染料染成深色的是（）

判断镁条在空气中燃烧是化学变化的依据是（      ）

（1）The soldier did what they could____ (save) the people under the ruins(废墟）after the
earthquake .
（2）What great fun we had____ (dance) at the party last night!
（3）It's said that 32 people____ (die) from H7N9 so far.
（4）She couldn't work out the problem, so he asked her teacher for help____ (wise).
（5）____ (prevent) the communicable diseases, the doctors did as much as they could.
（6）Look, this beautiful stamp must be one of those____ (direct).
（7）My deskmate is often heard____ (sing) after class.
（8）The____ of Xi Jinpin made the people in the disaster areas feel warm.(arrive)
（9）After watching the film , he got even____ (bored).
（10）My dream is to be a football player, What about ____  (she)?