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has been have been has had have had
had put out had been put out has put out has been put out
were have been has been was
had been were have been has been
The number of; has been planted A.great number of; have been planted A. great number of; has been planted A. great number of; have planted
have taken place have been taken place has taken place has been taken place
has taken have taken has been taken have been taken
Has, gone Has, been Have, been Have, gone
has been have been was were
has been hasn’t been has gone hasn’t gone
Great changes have been taken place What great change How it has changed How great it has changed
have been has been was were
have been prepared have been preparing has been preparing has been prepared
The number of; has been planted A.great number of; have been planted A.great number of; has been planted The number of; have planted
has been have gone has gone have been
The number of; has been planted A great number of; have been planted A.great number of; has been planted A.great number of; have planted
The contractor's indirect costs will increase and the customer's payment for them will increase，to The contractor's indirect costs will increase but the eLlstomer's payment for them will not increas Neither the contractor's indirect costs nor the customer's payment for them will increas The contractor's indirect costs will not increase but the customer's payment for them will increas
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