要不要这份礼物由你自己决定。
It’s ________ ________you whether we accept the present or not.
We should do something to cut down the air pollution. （改写句子,句意不变）
Something should________ ________to cut down the air pollution.
Come on, or we will miss the early bus. （改写句子,句意不变）
________we________ hurry, we will miss the early bus.
My mother asked me, “Can you pass the exam?” （改写句子,句意不变）
My mother asked me ________I ________pass the exam.
Roy has learnt six languages in the past few years.（对句子划线部分提问）
________ ________languages has Roy learnt in the past few years?
My sister studies English every day.（改为否定句）
My sister________ ________English every day.