There are five pairs _________, but I’m at a loss which to buy.[ ]

________ do you go to work every day——Take a bus.

I get up ________ 6:30 ________ everymorning

So far we have done a lot to build a low-carbon economy, but it is________ idealWe have to work still harder

The report was not concrete and in a waylacked persuasion, but _____,I felt it is fair.