Is this the reason ____at the meeting for his carelessness in his work?

That was the first time ______ I ______ face to face with the president. 

She was moving out of her old apartment          she suddenly realized that the key to the new apartment wasn’t on her.

. We’d like to do _______ we can _________ the poor.

In extreme weather, a worn tyre can break easily ______ it’s mended, as is often the case.