overcrowded historical safety apart from on schedule mysterious shopping mall countless 1. I happened to meet him in the ____________whenI was busy shopping with my wife. 2. No one can tell what Mona Lisa’s_____________ smile means. 3. I was told that the train from Beijingwould arrive in Shanghai ______________. 4. On a fine summer night we can see___________ stars in the dark sky. 5. __________ a few small faults, he is atrustworthy teacher and loved by his students. 6. The young soldier jumped into the waterto save the drowning boy without thought of his own __________. 7. He graduated from a university of science and technology but he has been engaged in __________ research. 8. Because of the traffic accidents on themain roads, the side streets were __________ with pedestrians and bikes.