In no country, ________ Britain, it has been said, can one experience four seasons in the course of a single day.
To avoid on how to use the word, you’d better refer to a dictionary.
Some insects________the colour of their surroundings to protect themselves.
There is a shortage of teachers in Western China, and it will fall on the 80s and 90s generations to this responsibility.
Only when he reached the tea-house ______it was the same place he’d been in last year.
Only when he told me________what trouble he was in.