________ at the result, the boss left without saying any word.

It is worth considering what makes “convenience” foods so popular, and ____ better ones of your own.

----- Are you used to______ in the north with the old couples? ----- Yes, I am glad to find out that coal is used______ electricity for home use.

The setting sun was reflected on the river, ________ everything along the banks ________ all the more beautiful.

 It’s standard practice for a company like this one______ a security officer.