---I’ll ask the teacher about past tense. I’m very puzzled about it. --- That is just _____ most of our classmates have doubt.
Deaf people can't _____,but they can learn how to move their mouths ______they can speak.
Don't worry. The hard work that you do now ____ later in life.
______ a phone is of great help, I don’t think it’s a good idea to spend too much time on it.
Peter will come to understand your efforts sooner or later. It’s just a matter of _____.
Experts think that __________recently discovered painting may be ________ Picasso.