The old man, _______ abroad for twenty years, is on the way back to his motherland.
| A．to work | B．working |
| C．to have worked | D．having worked |
He made a decision that when he grew up, he would try his best to money for the poor.
| A．arise | B．rise | C．arouse | D．raise |
We haven’t seen each other for many years since welast time.
| A．separate | B．separates | C．separated | D． separating |
Many years have been spent by him how to solve the question.
| A．to learning | B．with learning | C．learning | D．on learning |
It was some timewe realized the truth．
| A．when | B．until | C．since | D．before |
Tom was ______ that he couldn’t understand ______ difficult sentence.
| A．so a stupid boy; such | B．a so stupid boy; a such |
| C．so stupid a boy; a such | D．so stupid a boy; such a |