— They speak perfect English. How long have they learnt it?— ______ they were seven years old.
There _______ a robot in every home.
--- ____ your friend _____ the guitar at the concert(演奏会)? --- Yes, he will.
I’m going to be ______ engineer.
— I made some mistakes in the test. — _____. Be careful next time.
Tony goes to school every day.