DuoDuo is a great lone traveler crossing borders of nation, language and history, as well as a determined predictor of some of the most basic, universal human values that _____ in our troubled modern times.
| A．have been overlooked | B．have overlooked | C．has been overlooked | D．is overlooked |
All present were shocked by what the little boy______ when he was cheated and sold to the mountain village.
| A．cared about | B．got along with | C．went through | D．came up |
What a pity. The car ran out of sight before I could ______ its number.
| A．set about | B．set down | C．set out | D．set up |
----Volunteering is becoming ______ popular in China.
---- Yeah. People are now aware that helping others is helping themselves.
| A．increasingly | B．naturally | C．frequently | D．fluently |
Thanks to their hard work, the new bridge has been finished ________.
| A．in front of schedule | B．ahead of schedule |
| C．behind schedule | D．beside schedule |
The second Sunday of May is Mother’s Day and a time to be to our mothers.
| A．concerned | B．fond | C．grateful | D．honest |