I ________ myself in my studies. In return, I gained great success.[ ]

The decision _____ giving lessons during vacations andweekends should be banned is ____ the Education Department of Anhui Provincehas made.

_ difficult and challenging the task may be, wemust finish it on time, because there is a possibility _______our work will godown in history.

up You look worriedWell,I_____on the problem for 5 hours but I haven’tgot a single clue

She _____me only twice since last year. [ ]