Ah, unfortunately there is a small matter I need to attend to so I'll take my leave now.

It takes a long time to convert.

Anything like a road was covered with water that had flooded out of the river.

The future progressive tense is used when expressing events and action in progress at some future point, however the example sentence cannot be understood in that way.

Investing abroad on your national currency basis will not always be profitable.

Omission is a perfectly good example of an expression technique, and is brought up in many grammar books.

I wonder if you can sue someone of the same sex for sexual harassment?

Is it the vacuum cleaner's fault that the room is dusty?

Carbon monoxide is a poisonous substance formed by the incomplete combustion of carbon compounds.

In my daily life I take care in various ways of my body so as not to damage my health.