Their tent, __________ light as a feather, remained firm in the storm last night.
| A．as if | B．even | C．though | D．if |
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 |
—Come on, please give me some ideas about the project.
—Sorry, with so much work ______ my mind, I almost break down.
| A．filled | B．filling |
| C．to fill | D．being filled |