Soon, his warm, inviting smile put me _____, and we spent the next two hours talking casually[ ]

Both David and his sister left school when they were only 11.— No wonder of them is poor –educated.

It is possible that the murder _______ between 9 and 11 last night.

It was not until 1911, _______ the first vitamin was identified, _______ people realized the importance of it．

I’d like your help tomorrow.— No problem, but can you be more _______ so that I can make advance preparations?[ ]