It’s no use arguing with him; _____ to persuade him to join us, he did not change his mind.[ ]

We shouldn’t have set out at that time. We had _______ the fact that it was getting darker.

Oh! I ___ you ___ in Beijing.How long have you been here?

I’d rather ride a bike as bike riding has _____ of thetrouble of taking buses.

In order not to _____, he spent the whole night preparing for the speech of next day.