We have been excavating layers of ash almost six metres thick, which suggests that they the fire burning all winter.
| A．should keep | B．might have kept | C．should have kept | D．might keep |
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 |
Attention! _________ in the form right now, making sure that every detail supplied is accurate.
| A．Filling | B．Fill | C．To fill | D．Being filled |
Relations between China and Africa are based on a balance of interests and ________ the needs and demands of developing countries.
| A．provides | B．provided | C．providing | D．is providing |
HuShuli, __________ editor of China’s most influential business publication, Caijing, has resigned from the biweekly.
| A．founding | B．founded | C．found | D．having found |
A large number of students give messages to their close friends through this radio club, __________ hosts are all their schoolmates.
| A．that | B．of which | C．which | D．whose |