She was sleeping with （） windows.

单项选择题Mary likes living （）.

A.lonely
B.alone
C.in person

单项选择题（） aeroplanes in this company are Boeing planes.

A.Most of
B.Most
C.The most

单项选择题You must （）your bad habits.

A.give off
B.give up
C.give out

单项选择题Mary is not here. She （） to Paris.

A.went
B.has gone
C.has been

单项选择题This question was （）difficult that no one could answer it.

A.too
B.very
C.so