Your sister’s plan is not quite practical.Why not try to persuade her to give it up?—My sister is very stubborn，so it is________to try to change her mind

A bright idea suddenly struck me _____ I could use the money I saved to help a poor student in the countryside.

Nobody knows _______broke into the house last night and stole the important papers.

______ he explained it to me did I make sense of what he said.

re and more Chinese senior students areapplying for admission to American universities through SAT —________ But taking an SAT may cost one more than 10,000 yuan