词汇运用 用所给的适当形式填空 combine explode violent surface development spread presence disappoint mass gradually 1.   Let's ________ to fight against our common enemy. 2.   Don't put the bottle on the edge of the ________ of the desk, or it will fall down. 3.   A great ________ of rock had fallen from the cliff and now blocked the road. 4.   The news that tsunamis caused more than 100,000 deaths ________ throughout the world in a short time. 5.   Several days ago, a bomb ________ near the police station, killing 10 officers. 6.   There is too much sex and ________ show on TV. 7.   There have been several new ________ in electronics. 8.   The change was so ________ that we hardly noticed it. 9.   The picture was so lifelike that he felt as if he were in the ________ of his dead father. 10.   The film was a bit of ________; we expected it to be much better.