People always interrupted his before he________what he was trying to day.
. ---Isn’t it time you __________down to _________ your own things?---I’m sorry for the delay, Dad.
When it _______ high technology, he is completely at a loss.
Though _______ money, his parents managed to send him to university.
. ---Learning a language isn’t easy. It takes time.---I agree. ________. There is no short cut.
. _____ can be enjoyed until you have a deep understanding of the low-carbon lifestyle.