Dick's mum was much kinder to him than she was to his brothers,（）of course, made them jealous.

单项选择题The speaker,（）for his eloquent speeches, was warmly received by the audience.

A．having known
B．being known
C．knowing
D．known

单项选择题（）much of their land is poor and only twelve percent of the land can be cultivated, over eighty percent of the population are agricultural workers.

A．Except that
B．Although
C．Because
D．So far as