__________ did your uncle leave his hometown ? He _________ for nearly 20years .

Everybody wants to go to Mount Huang, _____Lisa, who has gone there before.[ ]

What’s the advantage of shopping online?—I think buyers spend a lot of time going to shops.

Some of you may have finished unit one. _______, you can go on to unit two.

It’s silly __________ you _________ other’s homework. [ ]