e kept silent, Mr Johnson ______ his approval for our plan.

Listen! David is talkinghappily with his mother in the next room.　— It ______ be his mother. She has gone to Yunnan to be avolunteer doctor.

Thanks for your help— Don’t mention it I _______ offered some advice

Do you know how I can ____ him?—On his mobile phone．

are running __ clothing shop—Yes, but I don’t want to make it ___shop only for rich people.