________ material used for running tracks in schools across China may be ________ danger to children's health.
We found the students seated at tables and had their eyes__________on the scene of the launch of Shenzhou V spaceship.
When we got back from the cinema,we found the lamp__________but the door __________.
The drunken husband knocked against the table and sent the bowls__________in all directions before he was sent__________by his wife.
I can’t get my car__________on cold mornings,so I have to try__________the radiator with some hot water.
—Is Tom a good talker? —No,he never speaks to me other than__________something?