---Wow! These inventions are amazing．
—They were all invented _______years ago.
| A．hundred | B．hundreds | C．hundred of | D．hundreds of |
相关试题
—What do you usually do in the morning?
—I often practice English.
| A．speak | B．to speak | C．Spoke | D．speaking |
In those days bikes were not ______ used because few people could afford (负担起) to buy one.
| A．quickly | B．hardly | C．widely | D．nearly |
Jenny keeps two pets. One is a dog, ______ is a rabbit.
| A．another | B．an other | C．the other | D．other |
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