—Which of those electronic dictionaries do you like most?
—____.They are both cheap and of great importance.
| A．None | B．Both | C．Neither | D．All |
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 |
When why he behaved that way at table，he made no reply．
| A．being asked | B．asked | C．asking | D．to ask |