________by a group of children，the old man was delighted.
| A．To be surrounded | B．Surrounding | C．Surrounded | D．To be surrounding |
There's no bus now, and we can't get home _______ by taxi.
| A．rather than | B．other than | C．more than | D．less than |
— Did you know any Chinese, Joyce, before you arrived in Beijing?
— In fact, never _______ it.
| A．have I learned | B．I have learned | C．had I learned | D．I had learned |
— Ten dollars, please!
— How terrible! I ______ bringing my wallet with me.
| A．was forgetting | B．forgot | C．had forgotten | D．am forgetting |
— What do you think of Zhang LiangYing's English songs?
— Very attractive and lively. Almost no other Super Girls can sing _____ at present, I think.
| A．well | B．best | C．better | D．the best |
Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
| A．which | B．what | C．that | D．when |