你姐姐晚上在家常干些什么事?What____your sister _____in the_____at home?
现在,我爷爷正在客厅里喝茶.Now,my____is _____tea in the living-room.
此刻,他正在看一本有趣的书.At the ____,he ____ ____ an _____ book.
我妈妈经常在上午九点给房间通风.My mother______airs the room___ ____in the morning.
厨师正在厨房里做蛋糕.The____is____ ____in the_____.