【2012贵州毕节】—Were you at home at 9:00 last night? I called you but nobody answered.
—Sorry，I ______ at that time.
| A．take a shower | B．took a shower |
| C．was taking a shower | D．am taking a shower |
The new library building ___________last week.
| A．completed | B．was completed | C．is completed | D．has completed |
The math problem was _________ difficult __________ none of us worked it out.
| A．very; that | B．too; to | C．so; that | D．enough; that |
The CD is too noisy. Would you please__________ a little?
| A．turn it on | B．trun down it | C．turn it up | D．turn it down |
______Lily ______Lucy may go to the concert because they have got only one ticket.
| A．Either; or | B．Neither; nor | C．Not only; but also | D．Both; and |
I noticed him _________ the teacher’s office just now.
| A．go into | B．went into | C．was going into | D．came out of |