1.Cathy is trustworthy. She's a person on.....you can always depend. A.who B.whom C.that D. 2.He was lazy. He should...harder. A.have studied B.has studied C.has been studying D.Both B n C 3.I have two sisters....are doctor. A.both of which B.who both C.both of whom D.whom both 4.Lan wins the first prize in English speaking contest...makes her parents happy. A.which B. ,which C.that D.A n B 5.I can't find my book anywhere;I...it at home A.must leave B.must be left C.must have being left D.must have left 6.Does she prefer to do Math homework...do housework. A.to B.rather than C.better than D.than 7.Were you having a Maths test....? A.now B.yesterday C.9 am yesterday D.this time last day 8.This is a car about...he always dreams A.which B.that C.A n B D.whose 9. He wants to have someone...can repair his computer. A.that B.who C.,who D.all