大学英语：sth. is due. 到了该什么的时间了。

　　5. sth. is due.  到了该什么的时间了。e.g. The federal taxes are due. 到了该收税款的时间了

　　6. be similar to  与什么一样/形容词词组

　　7. buy sth. for +多少钱/动词词组  e.g. buy a packet of cigarettes for twenty-five cents.

　　8. in addition to sth./doing sth.　除了（表示加的概念）/名词词组

　　e.g. In addition to teaching， she is in charge of managing the whole school.

　　In addition to his flat in Chaoyang， he has anther flat in Haidian.

　　9. in two forms  以两种形式