Hospitality can be defined, in some sense, as the host's ability to _________their guests and make them feel at home.
查看答案
In China, people often feel_________to invite you to their weddings if you have invited them to yours earlier.
When invited to a friend's home in America, you are expected to inform the host in advance in case of the ______in your arrival.
1.Not until we had reached the mountain top____how high we had climbed.
A) did we realize
B) we did realize
C) do we realize
D) we realize
2.The doctor told us it was a robot_____performed the surgery.
A) whom
B) that
C) which
D) what