Don’t talk about such things _______ you are not sure about.
| A．which | B．that | C．as | D．what |
_____ it will do us harm or good remains to be seen.
| A．If | B．Whether | C．That | D．What |
Although he was a teenager, Robert could resist _______ what to do and what not to do.
| A．being told | B．to tell |
| C．to be told | D．telling |
People love to waste time on the Internet and if it's funny they'll go there, ________ who put the information there.
| A．regardless of | B．in case of |
| C．in spite of | D．instead of |
It suddenly _____ him that he had taken the wrong bus.
| A．happened to | B．devoted to |
| C．appealed to | D．occurred to |
To start with the aim of doing harm to others is only to ________ ruining oneself.
| A．at the end | B．in the end |
| C．make ends meet | D．end up |