______many times, he finally understood it.
| A．To tell | B．Telling | C．Having told | D．Having been told |
Tom is _______ to miss the early bus because he got up late.
| A．possible | B．Probable | C．likely | D．maybe |
They considered___ a computer, which was considered ___ a great help in their work.
| A．to buy；to be | B．buying；being |
| C．to buy；being | D．buying；to be |
The natural beauty of Mount Tai _______millions of tourists from all over the world every year.
| A．encourages | B．attracts | C．reminds | D．seizes |
________the good old days，he couldn’t help smiling.
| A．Looking back at | B．Looking on |
| C．Looking forward to | D．Looking into |
What great fun the children had____ basketball! I didn’t have the heart to stop them.
| A．to play | B．playing | C．play | D．played |