Although you may meet some difficuIties,you should never .
He _____ go out with his parents, but now he ______ staying at home alone.
–Lily won the first prize in yesterday’s dancing competition.– Her mother must be_______ her.
Do you know _______ to the top of the mountain yesterday?
The workers are all looking forward _______ home early.
He has two sisters. One is quiet, and _______ is outgoing.