1 . ________in its story, Bryan had to make great effort to concentrate on the book, ________ the outside world.

A．Absorbed; ignoring	B．Absorbing; ignoring
C．To be absorbed; ignoring	D．Being absorbed; to ignore

2 . His performance is soul-touching and we are ___________(absorb) in it. (所给词的适当形式填空)

3 . So ________(absorb) was my brother in our talk that he took a wrong turn on the way to the airport. （所给词的适当形式填空）

4 . When deeply ________ (absorb) in work, the scientist always forgets all about eating or sleeping. (所给词的适当形式填空）