It is not yet known how these huge stones were conveyed a distance of 380 kilometres 3 000 years ago.
| A．at | B．for | C．over | D．in |
——Does Shelly like shopping?
——Well，she would rather spend timeat home thanin the street．
| A．read；wander | B．reading；wander | C．in reading；to wander | D．reading；to wander |
The problemsat the meeting tomorrow are really hard to solve.
| A．discussed | B．to discuss | C．to be discussed | D．discussing |
___ surprised me most was ____ he was too late for the important meeting, for he was chairman of it.
| A．What; why | B．That; how | C．What; how | D．That; why |
_______ all the inventions have in common is _____they have succeeded.
A. What; what B. That; that C. What; that D That; what
Only when I read this story for a second time to appreciate its beauty.
| A．had I began | B．that I began | C．I began | D．did I begin |