Our teacher is very strict ______ us, and we all show our respect ______ her.
—Lucy, read this book, I ____ that you’ll be fond of it. —OK. I’ll read it after I have finished my homework.
The air is deadly polluted because some factories don't ________ the rules to protect the environment.
The visiting minister expressed his satisfaction with the talks, ______ that he had enjoyed his stay here.
You should try not to get ________ in the trouble between them.
Many countries are in great need of natural gas, wind and other forms of ________.