-Are you Maria? -______. A. Yes, I are B. No, I am C. Yes, I am
You’d better wear a pair of comfortable trainers when ________a long walk.
一Look! That teacher is explaining something to her students again and again!一_______teacher she is!
Though he got up early, ______ he missed the train.
You are _______ out all the difficult problems .
I have problems _______many things. For example, I have problems ________ learning Maths well.