外语学习的基本条件是什么

多项选择题合作学习理论认为，在班级教学中，学生群体的组织形式有三种，即( )。

多项选择题教学目标包括( )等三个层次。

多项选择题中小学教师职业道德规范的基本内容包括( )。

单项选择题No decision______about any future appointment until all the candidates have been interviewed.

单项选择题Tim is in good shape physically（）he doesn't get much exercise.

A. if
B. even though
C. unless
D. as long as

单项选择题I tried phoning her office, but I couldn't ______.

单项选择题—How about your trip to Hainan — It couldn't have been ______. Sometimes I went swimming in the sea; sometimes I lay on the sand.

单项选择题—We've spent too much money recently. —Well, it isn't surprising. Our friends and relatives（）around all the time.

A. are coming
B. had come
C. were coming
D. have been coming

单项选择题（）from the top of the tower, the south foot of the mountain is a sea of trees.

A. Seen
B. Seeing
C. Having seen
D. To see

单项选择题—Excuse me, where is the nearest bookshop, please —Sorry, I don't know. —______.