—I didn’t know you were good friends .—You _____.I have known her since she moved here. You were studying abroad then.
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.
He has decided to settle ____in France because he is fond of the romantic country.