In order to catch up with her classmates, _____.
He likes to sleep with the window ________ and the door ________ at night.
I think this is the best use that we can _________ the material(材料). A make of B. do of C. take of D. make at
Little Johnny felt the bag, curious to know what it _________.
He had ever climbed this mountain several months before, but ________ he couldn’t find the way this time.
Though _______ to see us, the professor gave us a warm welcome.