下列诗句所描写的景色，依一年时序的先后，排列正确的一项是甲：六出飞花入户时，坐看青竹变琼枝。乙：玉阶生白露，夜久侵罗袜。丙：桃花尽日随流水，洞在清溪何处边丁：水际轻烟，沙边微雨。荷花芳草垂杨渡。

There are many ways in which you can improve your studyBut __________, you should work hard

May I go to the theatre with you—I’m afraid not ____ you have a ticket, because I have only one.

.I think ______ quite difficult _______ all the tasks in time.

Keep your child off drugs,________ it will________ many serious health and behavior problems.