As teenagers, it is not until we are able to face difficulties bravely we are mature enough.
| A．which | B．when | C．that | D．whether |
—I just heard that the tickets for tonight's show have been sold out.
—Oh, no！________.
| A．I was looking forward to that |
| B．It doesn't matter |
| C．I knew it already |
| D．It's not at all interesting |
________ it is to have a swim in a pool on a hot summer.
| A．How fun | B．How funny |
| C．What fun | D．What funny |
Twenty students want to attend the class that aims to teach________to read fast.(2011·辽宁)
| A．what | B．who | C．how | D．why |
It sounds like something is wrong with the car's engine.________，we'd better take it to the garage immediately.(2011·江苏)
| A．Otherwise | B．If not |
| C．But for that | D．If so |
It is not how much we do but how much love we put into what we do ________ benefits our work most.(2011·陕西)
| A．who | B．which | C．that | D．what |