Many parents __________ challenging conversations with their children later this month to help them recover from the panic. 
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A
have had
B
will be having
C
have
D
will have had
推荐题目
The film TITANIC ____ a true story.
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A
based on
B
base on
C
was based on
D
had based on
The committee __ over the problem among themselves for two hours. 
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A
has argued
B
has been arguing
C
have argued
D
have been arguing
—Have you read book called Waiting for Anya? —Who _______ it?
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A
writes
B
has written
C
wrote
D
had written
 The vegetables in his field ________ well, because they are pollution­free.
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A
are selling
B
have been sold
C
are sold
D
sell