My sister was writing an e-mail ________ I was watching TV at home at this time last night.

Do you know the iPhone5 has come out—-Really It’s said to be superiortheiPhone4s. I can’t wait to buy.

ly have time to think, ________ relax witha cup of tea

What’s the matter with the man hanging his headthere—Well，if you ________ know, hewas caught stealing my bike.

My mother has a habit of jogging _______the Qinhu Lake for two hours in the morning.