She wrote a month ago, ______ we’ve heard nothing.
Let’s learn to use the problem we are facing ________ a stepping-stone to future success.
—Would you like to join me for a quick lunch before class?— ______, but I promised Nancy to go out with her.
Mary is really good at taking notes in class. She can_ almost every word her teacher says. put out B. put down C. put away D. put together
Scientist have many theories about how the universe into being. came B. was coming c had come D. would come
Animals suffered at the hands of Man ___ they were destroyed by people to make way for agricultural had to provide food for more people. in which B. for which C. so that D. in that