Sam ______ coins since he was eleven years old, and now he has hundreds of them.
A.collected
B.had collected
C.has been collecting
D.had been collecting
对258人提供帮助
考查时态。句意“萨姆自从11岁就开始收集硬币了,现在他有几百个了。”表示动作发生在过去,一直持续到现在,有可能继续持续下去。用现在完成进行时。故选C。
Sam ______ coins since he was eleven years old, and now he has hundreds of them.
A.collected
B.had collected
C.has been collecting
D.had been collecting
对258人提供帮助
考查时态。句意“萨姆自从11岁就开始收集硬币了,现在他有几百个了。”表示动作发生在过去,一直持续到现在,有可能继续持续下去。用现在完成进行时。故选C。