用方框内所给词语的正确形式填空。

小题1:In spring, the _________ are very beautiful.

小题2:Would you like to take a _________ for me?

小题3:I’m very tired and I want to go to bed early ________.

小题4:The lost child is in ________ now.

小题5:I ________ with my best friend yesterday.

简述闪锌矿物理性质。