Thebookwaswrittencarefulobserv-优题课

The book was written ______ careful observations and detailed studies.

A．on behalf of

B．regardless of

C．on the basis of

D．in relation of

科目英语题型单选题难度较易

知识点：介词

Seeing me so pale(苍白的) , he asked me________.

The disabled girl________an active life played a________role in the film.

When he saw the________bear, his face turned pale ________.

There is no doubt that IT plays ________important role as a new teaching tool in this era of technology.

--- Did -you catch the early bus yesterday?
--- No,it _________ by the time I _________ the bus station.