________ I accept that Tom is not perfect in many respects, I do actually quite like the man.
| A．When | B．Because | C．Until | D．While |
Though he started late, Mr. Guo played the piano as well as, if ______ ，you do.
| A．not better than | B．not better |
| C．no better than | D．better |
After recovering from his illness, he was advised to ______ gardening as a hobby.
| A．take away | B．take off |
| C．take on | D．take up |
Weather ______, we'll go out for a walk.
| A．permitted | B．permitting |
| C．permits | D．for permitting |
Accustomed to ______ the steep mountains， he had no difficulty reaching the top.
| A．climbing | B．climb |
| C．having climbed | D．have climbed |
Not until he left his home ______ to know how important the family was for him.
| A．did he begin | B．had he begun |
| C．he began | D．he had begun |