Mark Twain ______ school and began to work at the age of twelve.
A. left B. leaves C. will leave D. leave
Jack usually goes to school by bike, ________ today he walked to school.
A. and B. but C. or D. so
My English teacher ________ Mrs Lane now. She often helps me.
A. were B. will be C. is D. was
—________ did you start school?
—I started school at five.
A. How B. Why C. When D. Where
Robots ________ heavy work on farms in the future.
A. do B. will do C. did D. does
Lingling needs some vegetable. She ________ some in the market tomorrow.
A. buys B. bought C. is going to buy D. buy
