Listening to loud music at rock concerts _____ caused hearing loss in some teenagers.
| A．is | B．are | C．has | D．have |
相关试题
—What is the model plane like?
－Well, the wings 
of the plane are of its body.
| A．more than the length twice | B．twice more than the length |
| C．more than twice the length | D．more twice than the length |
All cars made nowadays are with safety belts.
| A．prepared | B．packed | C．built in | D．equipped |
Before going abroad, he devoted all the time he could his spoken English
| A．to improve | B．to improving | C．improve |
D．improving |
They insisted on another chance to try.
| A．given | B．giving | C．being given | D．to be given |
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