---Who is the girl _________ a red dress? --- She is my sister, Betty.
A. on B. at C. wears D. in
Is it time for the students to do morning _____________?
A. to exercise B. exercises C. exercising D. exercise
--- Thank your father for ____________ me with my English? --- You are welcome.
A. help B. to help C. helps D. helping
--- What do you usually do _________? --- I often read books with my friends.
A. at weekend B. at the weekends
C. on the weekend D. on weekend
Mr Yang and Mrs Yang has a baby girl, _______ love _______ very much.
A. they, she B. them, her
C. they, her D. them, she
--- _______ do you play basketball with your friends? --- Every Saturday afternoon.
A. How many B. How often C. How long D. How
