Hangzhou is one of the most beautiful cities ___ I have ever visited.
He is always helping others without expecting anything _________.
Don’t worry. The hard work that you do now ______ later in life.
I’ve no experience of travelling abroad. Would you please tell me what ______.
It was not what he said but the way ________ he said it that surprised us.
A new manager will come to take ________ charge of this company, which was in ________ charge of Mr. Wang.