–What does your father do ?--He is a . He teaches English . A. singer B. writer C.teacher
We had a picnic Saturday . A.\B. nextC. last
.No! they in Beijing. A.isn′t B. weren′t C. wasn′t
Robots can. A. talkB. talking C. talked
you at home yesterday ? A. Is B. WereC. Was
it a big city then ? A. Was B. WereC. Are