--What's wrong with your uncle?--- We're sure____ something is wrong with him, but we doubt_____ the disease can kill him.
I find it _____ that I can’t speak English well.
.I used to ______ a lot of time __________ games with my friends.
---It’s good for you to _______ in class. --- I think so. Thank you.
I can’t afford ______ the white car, it’s too expensive.
______ he became seriously ill, he still went on working.