The best way to explore _______ countryside is on _______foot.
It was Paul’s low test scores that_________ his chances of getting into a good school.
_______they visited the Science Museum, they showed great interest in everything they saw.
To their disappointment, they found the lecture given by the professor difficult__________.
As soon as he heard the ________ news of his death, she _______ tears.
----I’m going to the United States.---- How long ____you ____in the States ?