_____ quite recently, most mothers in Britain did not take paid work outside the home.
| A．Before | B．Until | C．From | D．Since |
He likes to sleep with the window ________ and the door ________ at night.
| A．opened, closed | B．open, close | C．opened, close | D．open, closed |
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 _________.
| A．collected | B．contained | C．included | D．saved |
He had ever climbed this mountain several months before, but ________ he couldn’t find the way this time.
| A．anyhow | B．somehow | C．somewhat | D．sometime |
Though _______ to see us, the professor gave us a warm welcome.
| A．confusing | B．was confused | C．confused | D．being confused |