根据句意从选择合适的词填空（有两个是多余的）

根据句意从选择合适的词填空（有两个是多余的）
keep a record
result in
because of
mix with
1.Improved services have ___another star in the hotel' grade.（result in）?
2.Sometimes visitors gte into trouble __not understanding customs in the country they're visiting.

1.resulted in (因为服务已经进步了,星级已经提高了,所以一定要ed）
2.because of
1.由于服务质量提高了,酒店的星级增加了一颗星.
2.有时候旅客闯祸是因为不懂当地习俗.