教育心理学研究设计的基本原则有()。

单项选择题—I’m going on a trip to Hainan after the exam.—Really !

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Tom’s mother always told him not to smoke again, but didn’t help.

单项选择题—Do you mind if I the TV a bit—Yes, I do, because I’m busy with my homework now.

单项选择题new buildings will be built in my hometown.