It’s an either-or situation—we can buy a new car this year or we can go on holiday but we can’t do       .

—How is Helen in her new school?—          goes well. She is satisfied with her new school life.

There are many sales of mobile phones on www.taobao.com, and you can choose _____ based on your own interests.

President Obama told television viewers that he saw ______ as his duty to run for a second term.

Could I speak to ________is in charge of International Sales , please?