You are asked to attend the meeting ______ in the hall this weekend.

Li Ming ________ be in this city, for he has just gone to Shanghai.[ ]

______is the street crowded with so many people—Because they are waiting to watch the boat races.

My neighbour devoted his spare time ________ ancient coins.[ ]

Hello , this is Tina speaking. Is that Sam —- Sorry, he isn’t here at the moment . ________