It’s really a great pity that all of you ____ leave so soon. It’s been pretty nice having you all at my birthday party.

Every student admits that English is actually not easy ________.[ ]

It was________of Michael to inform us of his delay in case we got worried.

No matter how frequently ________,the works of Beethoven still attract people all over the world[ ]

Time is limited. I have to finish this tonight.—But it’s midnight now and you should have a sleep ______ much work you have to do.