11. Though you stay in the sea for weeks, you will not____________( 失去联系 ) the outside world.
12. The fifth generation computers, with artificial intelligence,_____________( 正在研制 ) and perfected now.
13. How close parents are to their children_________________ __( 有很强的影响 ) the character of the children.
14. The room is in a terrible mess; it _____________________ (肯定没打扫过).
15. With tears on her face, the lady _____________________ (看着他受伤的儿子被送进手术室)