When Nancy was at college, she ____ three foreign languages, but I am surprised to find that she ____ all except a few words of each.
_______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 ?
He often helps the students _________he thinks are not quick at their studies.