（天津卷5）. People have always ______ about exactly how life on earth began.
| A．curious | B．excited | C．anxious | D．careful |
In class the teacher clarified the finance project in simple but vivid language to make _____ easier for us to understand.
| A．one | B．it | C．them | D．that |
Social practice is an opportunity for students to gain a better understanding of_____ society operates.
| A．when | B．what | C．how | D．whether |
I ______to meet you at the airport this morning but I was too busy for I was writing a report.
| A．meant | B．had meant |
| C．have meant | D．would mean |
The voice of China has set up a big stage for young people with a talent for music, where some have_____ among them．
| A．stood for | B．stood up |
| C．stood out | D．stood by |
It doesn’t matter how many times you fail; It is how many times you stand up and try again _________matters．
| A．which | B．that | C．who | D．what |