Present Simple or Present Continuous answers

• Do the following exercise on Present Continuous »

• My brother often goes to the cinema.
• I am working hard on this.
• I hardly ever work as hard as that.
• Dreams sometimes come true.
• Your girlfriend is coming with us tonight.
• These flowers smell very strong.
• She is playing the flute and we are all listening.
• My sister plays the guitar beautifully.
• My roommate writes up to twenty emails a day.
• My wife is cooking something delicious in the kitchen. I can smell it.