Many of them turned a deaf ear to his advice, ________ they knew it to be valuable.
| A．as if | B．now that | C．even though | D．so that |
I wondered ______ they had raised so much money on their own to help youngsters in need.
| A．what | B．that | C．how | D．why |
If George had followed his father’s advice, he ________ a lawyer now.
| A．is | B．would be | C．has been | D．would have been |
________ along the Silk Road led to world-wide business 2,000 years ago.
| A．Trading | B．To trade | C．Traded | D．Having traded |
Brian talks to me like a child, _______ really annoys me.
| A．who | B．whom | C．which | D．where |
--- Alice looks sad. Did you tell her about her brother’s accident?
--- Sorry, I ________ her just before her final exams.
| A．can’t tell | B．mustn’t have told |
| C．needn’t tell | D．shouldn’t have told |