64.（）

The underlined phrase ”get themselves down” ( Para.1 )probably means.

The education experts worry about （ ）.

Those scientists were conducting an experiment and expected a good().

The sales manager had his secretary _____ a press conference for their new products.

These are plastic and wooden chairs but the _______ are more expensive.

The Blacks are _____ people in the little town.

—He looks so young! —I agree with you. He looks 30, but he is ___ 45.

According to Mrs. Brown, the purpose of teaching her children at home is （ ）.

63. （）

Some small businesses have neither the technology _______ the resources to compete with these big businesses.

68.（）