You can come ______ on Tuesday _______ on Friday, but whichever you choose, please let me know

The process of producing electricity may also give out CO2, _______ you heat your house with electricity instead of charcoal

Look! There is beautifulrainbow in the sky． —Wow, it’s so beautiful. I’d like totake a photo of rainbow before itdisappears．

The state-runcompany is required to make its accounts as_________ as possiblefor its staff to monitor the use of money.

We should do more such exercises in the future，I think，_____ thosewe did yesterday