She is in a poor       of health, which worries her mother much.

Since the beginning of this term, I’ve made _____________ in my English study.

. In our class, when the bell rang and the teacher closed his book, it was a ______for everyone to stand up.

These continual _____ in temperature make it impossible to decide what to wear.

The head office of the bank is in Beijing, but it has _____ all over the country.