The students spent as much time getting trained as they () studying.

单项选择题Whether by accident or ______, he arrived too late to help us.

单项选择题Thank you for sending us () fresh vegetables of many kinds. You have done us () great service.

A. / a
B. the a
C. / /
D. the /

单项选择题If Newton lived today, he would be surprise by what () in science and technology.

A. had discovered
B. had been discovered
C. has discovered
D. has been discovered

单项选择题Which of the following statement is INCORRECT

单项选择题I prefer () there doing nothing.

A. working than sitting
B. to work than to sit
C. working to sit
D. to work rather than sit

单项选择题终身教育思想形成于20世纪60年代的欧洲，由( )首先提出。

单项选择题学生刚学英语时，对26个字母的记忆两头容易，中间难，这种现象的解释是( )。

单项选择题He tried many times to sneak across the border to a neighboring country,() caught each time.

A. having been
B. only to be
C. always being
D. unfortunately

单项选择题20世纪教育发展总目标中的“两基”是（）。

A．基本知识和基本技能
B．基本普及九年义务教育，基本扫除青壮年文肓
C．基本普及九年义务教育，基本实现素质教育
D．基础知识和基本素质

单项选择题教育改革的核心是______。