Question 1.I think english is not difficult to learn A.Learning english is not difficult as I think B.It is difficult to learn english C.I think learning english is not difficult D.I think to learn english is not difficult Question 2.He called me yesterday .I was having lunch at that time A.Yesterday,while I was having lunch ,he called me B.He was calling me yesterday when I had lunch at that time C.Yesterday,while he was calling me ,I was having lunch D.He called me at my lunch time ,and I didn't answer Question 3.Many experts believe that noise is the cause of approximately half of all cases of____loss A.speaking B.hearing C.visual D.cognitive