What a ______ smell! How long was it sinceyou last cleaned the house

I didn’t do my homework well, so I always felt________and I would make an effort to go on with it,instead of beingdiscouraged.[ ]

Mary ________ passing the entrance examination.

Electrolysisis the process ______ electric current is passedthrough a substance to cause a chemical charge.

I’d like to_____whether Flight 245 for San Francisco is taking off on time.[ ]