She was so________in her job that she didn’t hear someone knocking at the door.

Chinese government should ______ taking action at once to defend the Diaoyu Islands.

Although the price has gone up by 5%，it's still ________ the limit set by the government.

 She must be looking forward as much to his return as he himself is to _______ her.

He looked at the envelope and __________ Jenny’s handwriting immediately.