------The two pairs of shoes are __________ the same colour. ------But they are different __________ colour.
——Mom,what did your doctor say? —— He advised me to live _____ the air is fresher. in where B. in which C. the place where D. where
So absorbed _______ in her work that she didn’t realize it was time that she picked up her daughter.
The women carrying babies, come in first, ______?
—— ______ you got to know I traveled to the USA? ——Through one of your colleagues.
I’ve tried very hard to improve my English. But by no means _________ with my progress.