building supplies to construct theseenergy-saving houses. It took brains, too.

Your dream won’t come true _______ you know what your dream is.

Has Jack finished his homework yet? — I have no idea；he ＿＿it this morning

always have so many things to_____ when I come back to the company after a trip abroad. [ ]

Loulan city is not at all atraveler who has never seen the desert before can imagine.