________ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
The treaty will not only benefit the two countries and peoples but also _______world peace.
Finally he realized that he had been transported into future of ______ was still his hometown.
It’s so wet there that the trees are extremely tall, some ______ over 90 meters.
With all the books she needed _____, she left the library with satisfaction.
He got the first place in the Oral English Contest, ____ was beyond his expectation.