By 16:30，__________ was almost closing time, nearly all the paintings had been sold.
| A．which | B．when |
| C．what | D．that |
The College Entrance Examination near, so you should be prepared for it.
| A．is drawing | B．draws |
| C．drew | D．has drawn |
_____ China’s reform and opening up in late 1978, its quick development has aroused worldwide attention, which has made America anxious about it.
| A．When | B．As | C．While | D．Since |
Whenever I met him, _____ was fairly often, I like his sweet and hopeful smile.
| A．what | B．that | C．which | D．when |
— What is that building?
— _____ the garden equipment is stored.
| A．There is in which | B．That is where |
| C．The building that | D．That I got |
— Is he said ____ his car lost?
— Yes. He was so foolish ____ leave his car ____.
| A．that…that…unlock |
| B．to have had…as to…unlocked |
| C．to have…to…unlock |
| D．to have…for him to…unlocked |