oked in the direction of the window, but there was nothing in front ______ the deep darkness.

t here for Beijing in 1998 ,____I have heardnothing from her.

So far this year we______a fallin house prices by between 5 and 10 percent.[ ]

To my surprise, my good friend _________ stay up to study to prepare for the next important exams organized by ten famous high schools.

Lucy is ________ girl of the twin sisters.