Having a good command of the language of the country where you are going to study is necessary, because language skills affect you perform academically.
Henry can't attend the party ____ at Tom's house at present because he is preparing the speech at the party ____ at Marie's house tomorrow.
-- Will you go skiing with me this winter vacation? -- It __________.
My study of maths has ____ much of my time, but it has given me a great deal of enjoyment.
You ____ things about. Look, what a mess in your room!
I finally got the job I dreamed about. Never in all my life_____ so happy.