请根据句意或括号中的中文提示、英文释义，写出句中所缺单词，使句子通顺。

小题1:She loves taking photos and always takes her    ▲   (照相机) wherever she goes.

小题2:Now that they have a baby, they    ▲   (很少，不常) get the chance to go to the cinema together.

小题3:It will be Mike’s twelfth    ▲   (the day of one’s birth) next Saturday.

小题4:With the help of the police, Tim was    ▲   (having good luck) enough to get back his lost bike.

小题5:Tom did very badly in the maths test. Poor him! He    ▲   the test again.

绵马贯众的化学成分主要为（）

A.间苯三酚衍生物

B.三萜皂苷类

C.蒽醌类

D.生物碱类

E.香豆素类