The “eat-up” campaign, ______ by Xu Zhijun and his three friends, has raised awareness of food waste all over the country.

China has         in producing clones of cows and goats, and continues to research ways          _______ can benefit mankind.

She has been working hard day and night, which of course, _______ her pale face.

-- London Bus Service, how can I help you?--- Hi, I’d like to rent a bus which can ____ 40 people for our trip to Cambridge.

Your daughter ____ to be a famous musician, so you should keep her practicing the piano.