Great scientists don't ________ graduate from well-known universities. Some didn't even attend school a year in total.
I lost a book, ______I can't remember now.
You're the only person ______I've ever met ______could do it.
.In our factory there are 2,000 workers, two thirds of ____are women.
The letter is from my sister, ______is working in Beijing.
—I‘d like a pen which _________ well. —Will this one _________?