Have you ever _______ to Singapore?–No, never.

Carl, why not go and help your sister water the flowers there? —Why__________? I’m busy myself. Jack is lying on the grass doing nothing.

.I love football. , I think it’s probably my favorite.[ ]

According to ____recent report, house prices in this city will reach 10000 yuan a square meter by ____year 2016.

Most people think that English is ___________ useful language, but some students think it’s ___________ unimportant subject.