There is somebody waiting for you, _________ I think might be one of your classmates.
| A．who | B．whom | C．which | D．whoever |
Julia，if you hurry up，I think it quite ______ that you will catch the next train.
| A．probably | B．certainly | C．likely | D．possibly |
People have always been curious ______ how living things on the earth exactly began.
| A．in | B．at | C．of | D．about |
_____ money，it remains to be seen whether we can put the idea into practice.
| A．Lacking | B．Lacked | C．To lack | D．Having lacked |
When I took his temperature，it was two degrees above ______.
| A．average | B．ordinary | C．regular | D．normal |
In order not to let the others hear what he said，he ______ the news to me.
| A．shouted | B．told | C．whispered | D．said |