In our school library, there a very small number of books on history, and in these years the mumber of them getting larger and larger.
| A．are, is | B．is, are | C．have, are | D．have, is |
—When ________ you free last week？
—Well，I ________ have a free day because I had too much work．
| A．did；didn’t |
| B．were；didn’t |
| C．were；wasn’t |
| D．did；wasn’t |
________ is really hard ________ them to climb such a high mountain．
| A．This；to |
| B．It；to |
| C．This；for |
| D．It；for |
—I called you yesterday evening，but you were not in．
—Sorry．I ________ in the shop with my mother．
| A．am |
| B．will be |
| C．was |
| D．have been |
—Dave called you about half an hour ________，Anna．
—Thank you．I’ll call him back．
| A．ago |
| B．before |
| C．after |
| D．later |
—What did you do last night？
—I ________ TV and read books．
A．watch
B．watched
C．have watched