_______ such heavy pollution already, it may now be too late to clean up the river.
| A．Having suffered | B．Suffering | C．To suffer | D．Suffered |
—What do you do as a volunteer in North Africa?
—__________! There are many poor people who need a lot of help.
| A．None | B．Something |
| C．Little | D．Everything |
They’ve moved to a different house_________their children can attend a better school.
| A．in case | B．so long as |
| C．so that | D．even though |
The Alibaba Group, _____was founded in 1999, has become China’s largest e-commerce company.
| A．what | B．which | C．whose | D．whether |
A storm buried Illinois under several inches of snow on Tuesday,______at least 100 people dead in traffic accidents.
| A．to leave | B．leave | C．left | D．leaving |
— Do you like the book you father bought you?
— Very much. It’s exactly______I wanted.
| A．which | B．that | C．what | D．how |