—How are your children in their new home?—Fine. The good thing is that they've __________ very easily to new environments.
I have bought two ball pens , _______ writes well.
------Why do you turn back? ------ Oh, the bridge ahead_______.
People in the west make_______ a rule to buy Christmas presents for their relatives and friends.
I remember everything ______it had happened yesterday.
It is required that students______ mobile phones at school, so seldom_______ them using one.