The village has developed a lot ________ we learned farming two years ago

ago we didn’t know this , but recentscience______that people who don’t sleep well soon get ill.

Mum, may I havesome cakes?——Sorry, there’s ____ left in thebox. I’llgo and buy some for you tonight.

下列各组句子中，不全含有通假字的一组是（ ）

We bought tickets to go to France, __________ this is not really the best time of year to go.