—Shall I go over to chat with you this evening? —Nice of you! It is ____ great comfort to keep me ____ company, when I’m alone at home.
____ with the size of the whole earth, the highest mountain doesn’t seem high at all.
I ______ my university professor in the supermarket near my house, which was out of my expectation.
I was not _______her presence till she spoke to me.
There is no need ______ because Mr. Smith is still sleeping.
When ____about his family, he is always refusing to answer.