After entering the Arabian house，you shake hands with（）person first，usually but not invariably the host.

Because of the awfully poor living conditions，black bea...

单项选择题Because of the awfully poor living conditions，black bears will be（）with various diseases.

The Education Ministry proposed guidelines to decrease ...

单项选择题The Education Ministry proposed guidelines to decrease the amount of the homework given to students each day，their burden is much heavier than what they can（）.

With refrigerators and freezers，we can（）a lot of differ...

单项选择题With refrigerators and freezers，we can（）a lot of different foods in our homes.