1 . It is strongly advised to hire local guides, because they can offer ______ knowledge of Sarek culture and history for visitors to deepen their understanding and appreciation of the area.

A．plastic

B．automatic

C．artificial

D．little

E．accurate

2 . After the night market finished, the area was littered with p________bags, disposable paper bowls and other waste. （根据首字母单词拼写）