______ on-going division between English-speaking Canadian and French- speaking Canadians is ______ major concern of the country.
| A．The; 不填 | B．The; a | C．An; the | D．An; 不填 |
I was feeling left out in the new school ________Alice, an easygoing girl from Canada, came to stay with me.
| A．if | B．once | C．when | D．unless |
According to its website, each tattoo lasts around seven days, ________ it isn't scrubbed or picked at.
| A．having provided | B．provided that |
| C．providing that | D．being provided |
—Why didn’t you finish the task? —I didn’t think it is ________ the effort.
| A．worthwhile | B．deserving |
| C．valuable | D．worth |
______ is important now for the Chinese economy is to adapt to the new normal.
| A．What | B．That | C．It | D．As |
We all think that the plan you come up with ____________ the work is very practical.
| A．completing | B．completed |
| C．to complete | D．complete |