用所给动词的适当形式填空。

小题1:My dream is_________(become) a great writer like MoYan.

小题2:The museum_________(build) eight years ago.

小题3:We _________ (learn) 3,000 English words by the end of last term.

小题4:He was last seen_________ (leave) his office in New Town at about 7.pm

小题5:Although shopping online is fast and easy, you’d better __________(not be) crazy about it.

挖填土方时，图的可松性是计算土方回填土方量，计算运输机具数量及进行土方平衡调配的重要参数。