__________ with the size of the whole earth，the highest mountain doesn’t seem high at all.
| A．When compared | B．To compare |
| C．While comparing | D．It compared |
“Sorry, sorry…”, he whispered, _______ talking to himself.
| A．while | B．even if | C．as if | D．when |
Not a single word_______ when _______about his late mother．
| A．he said, asked | B．did he say, asked |
| C．he said, asking | D．did he say, asking |
As a result of the earthquake, two-thirds of the buildings in the area________.
| A．need repairing | B．needs repairing | C．needs to be repaired | D．need to repair |
He came back late, _______ which time all the guests had already left.
| A．after | B．by | C．at | D．during |
It was in the garden of his old house _______ he grew up that he dug up a pot of gold.
| A．that | B．where | C．which | D．what |