—You seem to show interest in cooking.—What?_________, I’m getting tired of it.
If people keep polluting the rivers, no fish there will survive ______.
--- I’m sorry I have broken your teapot. --- ______.
--- What do you think of Andrew? --- There are some things that are not easy to ______, and his coldness is one.
You can do it ______ you like; it really doesn’t matter.
On ______ the flight would be delayed, we made other arrangements.