________that he made an obvious mistake，Jeff went on with his speech.
| A．Not realized | B．Not realizing |
| C．Not to realize | D．Not to have realized |
—Come on, please give me some ideas about the project.
—Sorry. With so much work my mind, I almost break down.
| A．filled | B．filling | C．to fill | D．being filled |
The wild flowers looked like a soft orange blanket _____ the desert.
| A．covering | B．covered | C．cover | D．to cover |
_____ in thought completely, he didn’t even know what was going on.
| A．Losing | B．Lost | C．Having lost | D．Having been lost |
The manager introduced the rules that she would like to see _______ the next year.
| A．establish | B．establishing | C．established | D．to establish |
，Mom had a cup of coffee and a few minutes’ rest．
| A．With her housework done | B．With her housework being done |
| C．With her housework doing | D．With her housework to do |