I really don’t know how to thank you , but for your help, I ______ my lost necklace．
| A．couldn’t have found | B．mustn’t have found |
| C．couldn’t find | D．wouldn’t find |
The 18-storeyed building, when _____, will shut out the sun _____ up the rooms in my house.
| A．completed; lighted |
| B．completing; lighting |
| C．completing; lighted |
| D．completed; lighting |
_____ and out of breath, we reached the top of the mountain and stopped _____ the beautiful scenery.
| A．Tiring; to admire | B．Being tired; admiring |
| C．Tired; to admire | D．Tired; admiring |
The performance of the host, _____ to please the audience and draw their attention, was greeted with a cold silence, however.
| A．had intended | B．intended |
| C．being intended | D．to intend |
Some of the schools in Shanghai have moved one step closer to _____ with the global education community.
| A．being connected | B．connect |
| C．having connected | D．be connected |
The teacher asked more _____ to prevent the students’ eyes from being injured.
| A．to do | B．done | C．to be done | D．being done |