This is useful book,book is my brother’s.
Look! The boy is just wearing a shirt in cold winter.—How poor! It’s said that his parents _____ since he was 3 years old. Maybe we should give him a hand.
_____ my opinion, to have a trip is good for our health. [ ]
Frank didn’t go to the park last Sunday, I didn’t____.
Do you often play computer games? —No, And so do ________ of my classmates, you know we are very busy