---How old can you guess your new English teacher is ?--- It’s hard to say. But I guess him to be _____between 35 and 40.
____ several times, the young scientist still kept on doing his experiments.
It was last October ____ they finally came back to their hometown.
My pen is missing I can’t find ____ anywhere.
Had I learnt English well, I ____ interview for the job tomorrow.
I think the answer is right but I’m not ____ sure about it.