问题

For theme parks, ______ is the key to _____ visitors, which contributes to the success of running them. [ ]
A: the variety; attracting
B: A variety; attract
C: Variety; attracting;
D: Variety; to attract
B: A variety; attract
C: Variety; attracting;
D: Variety; to attract
正确答案是:
同类题型
______ everyone has completed the work, it is possible to come to a conclusion
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–Where do these books _____–Put them back _____they were.
Does Tara work as _______ as Tina–Yes, she does.
When you are ill, you can’t taste _____. Even the food you like best tastes _____.[ ]