The manager has come back from his business trip. He is asking you for the report.— Oh，my god ! I haven’t finished it yet. But he ________ back at the company tomorrow.

People are advised to be _____ towards the health concerns of their dear ones while burning firecrackers to celebrate the festival, for they contain harmful chemicals．

I’ m tired out. I ______ all afternoon and I don’t seem to have finished anything.

Why weren’t you at the meeting — I________ for a long distance call from my sister in America.

I’m going to visit my aunt thisevening. -________.