Living in the central Australia desert has its problem, _____ obtaining fresh water isn’t the least.

Would you like to eat up all the food on that plate? ——Sure,but that is not _______. I have already eaten all my food up.

.How do we say the number “4,135 ”?

It was __________________ back home from work.

I know she is very ______ . Look! The smile(微笑) is on her face.