题目内容
—It’s dangerous to swim here. Look at the sign!
—Oh, I _______ it.
| A．didn’t notice | B．don’t notice |
| C．hadn’t notice | D．haven’t notice |
A
解析试题分析：句意：在这游泳很危险。看这个标志！哦，我没有注意到。没有注意到标志这件事发生在说话之前，因此要用一般过去时。故选A。
考点：考查时态的辨析。
练习册系列答案
快乐小博士巩固与提高系列答案
相关题目
I am looking after Tom today.He’s been in my house ______________ 8:00 this morning.
| A．since | B．for |
| C．at | D．till |
He _____ in this factory for 20 years already.
| A．will work | B．works |
| C．has worked | D．is working |
—I called you last night, but no one answered me.
—Oh, I________ a shower.
| A．have taken | B．was taking |
| C．took | D．will take |
The mobile phone has influenced people’s life a lot since it ______.
| A．invents | B．invented |
| C．is invented | D．was invented |
—Is Kate coming to the party this evening?
—No, she _________ be at the party. She_______ to the UK.
| A．mustn't; has gone | B．mustn't; has been |
| C．can't; has gone | D．can't; has been |
I like the movie Harry Potter very much. I ________ it three times.
| A．watch | B．watched |
| C．was watching | D．have watched |
Mr. Green _______ his lessons when I went into his office.
| A．prepares | B．prepared |
| C．is preparing | D．was preparing |
All the new books _______ to the poor village next month.
| A．were sent | B．will be send |
| C．are sent | D．will be sent |