As is known to us, theory is based on practice and servers practice. A. by chance B. in turn C. in return C. by turn
Whether ways will be found to stop pollution or not is just___________ worries the public.
The plan __________just because people were unwilling to cooperate (合作).
The customer bargained with the shopkeeper for a long time, and finally they agreed ___________ the price.
Having received___________ training of the MS. Company, he was offered important position in management.
I don't remember___________ to the airport that year.