He usually watches TV______ Saturday evening.A. on B. in C. at
I often watch TV plays on weekends ,what about you ?--I _____watch them .they are long and boring .
---_____do you visit your uncle?---once a week .
Is there ________in today’s newspaper?
Did you buy _____in the shopping center?
He is very clever. At age 6, she _____to play the piano.