-Where is John?-He ______ the science lab.A. has gone to B. has been to C. went to
Mary _______ to see the films because she ________ it twice.
--- Lucy hasn’t come back from the library ________. --- Yes, I have ________ called her.
— Is your father a doctor in No.2 Hospital? —No, he ___________ a farmer and now he is a driver.
_______ have you known the city? For five years.
It’s raining hard. ________, my parents are still working in the field.