1. ______ in her new novel, the young writer kept writing for hours in her room.
A. Having deeply absorbed
B. Deeply absorbing
C. Deeply having been absorbed
D. Deeply absorbed
2. ______ both sides accept the agreement will a lasting peace be established (建立) in this region.
A. If only B. As long as
C. Unless D. Only if
3. Eating too much fat can ______ heart diseases and high blood pressure.
A. contribute to
B. attend to
C. dispose of
D. sweep up