-He must be busy doing his homework right now.
-I imagine____.
| A．that | B．to |
| C．so | D．it |
. At a rough estimate（估计）, Nigeria is ____ Great Britain.
| A．three times the size as | B．the size three times of |
| C．three times the size of | D．three times as the size of |
. In face of _______ failure, it is the most important to keep up ________ good state of mind.
| A．不填; a | B．a; 不填 | C．the; 不填 | D．不填; the |
Most of the factories under___________ have been designed by Chinese engineers.
| A．control | B．construction | C．contribution | D． conclusion |
____________he came from the countryside, he became a modern architect.
| A．Although the fact that | B．Despite the fact that |
| C．Despite | D．Though the fact |
They wanted the house at the foot of the mountain ______in a way to look pretty
| A．build | B．to build | C．built | D．building |