If you are going to stay in the United States for longer than a(n) ______ visit, you may be interested in learning more about its people and culture.
#19047
A
formal
B
regular
C
brief
D
unexpected
推荐题目
With his son _____ , the old man felt unhappy.
#18564
A
to be disappointed
B
disappointing
C
being disappointed
D
to disappoint
 He said he would return the money, and I was ______. 
#20650
A
fool enough to believe him
B
enough fool to believe him
C
fool enough believing him
D
enough fool believing him