Playing on a frozen sports field sounds like a lot of fun. Isn’t it rather risky, _______ ?
--- What does Maggie look like? --- _________
Jack reached the company out of breath, only _______ he was fired.
ThereareseveralresearchcentersinChina________acertaindiseasecalledBirdFluis beingstudied.
I ___ the French written papers but failed in the English oral examination.
______ alone in a dark room, the little girl was so frightened as to cry loudly.