.Eating too much fat can ____heart disease and cause high blood pressure .
----Ten dollars, please! ----How terrible! I ______ to bring my wallet with me.
. Mr. Green requires that the students ______ cheat in any exam.
----Where did you meet him? ----It was in the hotel ______ he stayed ______ I met him.
. I ____ to the top of the tree, but I fell off it and hurt my leg.
. He is rather difficult to make friends with, but the friendship of his, _________,is truer than that of anybody else’s.