France has reported a second case of a new type of virus infection. The virus is similar to ______ that caused SARS, a breathing disease that killed 775 people in 2003.

 ---- Will you be on holiday soon? ---- Well, I’m too busy to take a holiday now. I’ll beable to take ______ later.

—You know Mr. Green has been ill for days?  —Yes, I wonder if he is ____ better now. 

I find _____ hard to concentrate on my studies with some people having small talks around me.

—Which of those T-shirts do you like most?—________ of them. They are both nice and comfortable to wear.