小题1:Jack’s little sister likes to watch the program Where are we going, Dad?. （改为一般疑问句）
______ Jack’s little sister _______ to watch the program Where are we going, Dad??
小题2:The 20th FIFA World Cup was held in Brazil on June 13, Beijing time.（对划线部分提问）
________ ________ the 20th FIFA World Cup held in Brazil?
小题3:We have studied at this school for three years.（改为同义句）
Three years has ________ since we ________ to study at this school.
小题4:The girl is shy. She is afraid to speak in public. (合并为一句)
The girl is _____ shy ______ she is afraid to speak in public.
小题5:Michael will take care of our dog when we are away on holiday next week. (改为同义句)
Michael will ______ ______ our dog when we are away on holiday next week.
2Z（气）；ΔH＜0，气体的平均摩尔质量M随温度变化如图所示，则下列说法正确的是（ ）