从方框中选词并用其适当形式填空

go off  hang on a minute  this way  come back    pay attention to

① —Excuse me! Where is Room 202?

—, please. It's on the second floor.

② Mrs. Smith in a hurry after a telephone call.

③As language learners, we must our pronunciation.

④ —Hello! Is that Tom Green?

—. He is mending his bike outside.

⑤ My father has gone to London. I hope he will soon.