完成句子 (每小题2分，共10分)根据中文意思完成句子。
爸爸去上海出差了。
My father has gone to Shanghai ______ _______.
孩子们在假期里玩得非常高兴。
The children _____ great ______ during the vacation.
现在许多人死于吸烟。
Many people ______ _______ smoking now.
作为青少年，我们应该自己洗衣服。
As teenagers , we should wash clothes ______ our _______.
你必须先穿过一条巨大的玻璃金字塔才能到达那幢大楼。
You must ______ _______ a giant glass pyramid first, then you will get to the building.