1. This terrorist attack has been ___ by the entire international community. A．condemned B．scolded C．criticized D．blamed 2. What these young men were doing ___ a threat to the safety of the whole neighborhood. A．constructed B．constituted C．contracted D．contributed 3. Natural gas can be used to power cars by ___ their engines. A．converting B．condensing C．transferring D．transmitting 4. Humidity is so intense in some parts of the tropics that Europeans find they are unable to ____it. A．maintain B．persist C．endure D．sustain 5. The road was so icy that the drivers had trouble stopping their cars from ___. A．drifting B．cruising C．sliding D．sloping 6. Once we d ___ the subject of Jill s wedding, we had nothing to say to each other. A．exerted B．executed C．exhausted D．explained 7. Despite the rescuers strenuous（艰苦的） efforts, hopes of finding the missing climbers are now beginning to____. A．decrease B．fade C．loosen D．faint 8. Don t ___ to contact me if you need any more information. A．hesitate B．pause C．postpone D．frighten 9. After a day s work, people may feel ___ to relax themselves by reading or watching TV. A．inclined B．intended C．declined D．subjected 10. This machine works very well so long as no one ___ with it. A．disturbs B．upsets C．interrupts D．interferes