----- Come on, please give me some ideas about the project. ---- Sorry . With so much work ___________ my mind , I almost break down.
_______ she couldn’t understand was ______ fewer and fewer students showed interest in her lessons.
It is pretty well understood _______ controls the flow of carbon dioxide in and out the atmosphere today.
“What were you trying to prove to the police?” “___ I was last night.”
. Patience is a kind of quality — and that is ___A___ it takes to do anything well.
They lost their way in the forest, and _______ made matters worse was that night began to fall.