Henry broke the window .I’ll ask him why __________ .
I was really too busy with my homework and I couldn't help ____________ housework.
Mary is one of the brightest students who_________ from New York University.
Mary is short__________ her brother is very tall.
It’s clear__________ that a hard working student has___________ a great interest in science.
These students are quick at learning. We'll have them __________ with new methods.