On December 10,2013,many world’s top leaders went to Johannesburg _____Nelson Mandela, who had passed away.

Meat isn’t really dangerous , is it–Oh! ____! It’s not at all good for our health.

The chemistry teacher required the students _______ more attention _______ the lab clean

Mum, I think I’m ＿＿＿＿＿ to get back to school. —— Not really, my dear. You’d better stay at home for another day or two.

The girl was so ____ by the mighty river that shewould spend hours sitting on its bank and gazing at the boats and rafts goingand coming