Below the topsoil of the earth is the subsoil, _____ layer that contains stones mixed with a small amount of _____ organic matter.
________many times, but he still couldn’t remember my phone number.
When he retells a story , sometimes he ___________ the key points.
Tom is senior _______ most other students in our class .
It was _____ he came back from Africa that year _____ he met the girl he’d like to marry.
Iraq has _____ too many wars, making people ______ a lot.