Giving up my job to go back to full-time education was a big __________, but now I know it was the best decision I ever made.
A．project B．commitment C．competition D．ambition
The new tax would force companies to __________energy-saving measures.
A．adapt B．adopt C．adjust D．address
But for water，it ______ possible to live in the desert．
A．is B．was C．were D．wouldn't be
I like __________in the early morning when the air is fresh and I can take a walk around the garden.
A．that B．it C．which D．what
Would you _________ her novels as serious literature or mere entertainment?
A．classify B．distinguish C．mistake D．remark
When he joined them in the work, he was disappointed at there _______ so little to do.
A．being B．were C．having D．had
