You can hardly imagine the difficulty the woman had ________ her children.
It was with great joy _______ he worked out the problem that he had long been puzzled about.
The manager is always very _______ for appointments, which earns him a good reputation.
_______ this sentence a second time, the meaning will become clear to you.
Global warming is a big _______ for all and it’s important to raise awareness about climate change.
— You _______ for me this morning. I came over here with Michael in his car.— Well, why didn’t you let me know earlier?