Tu Youyou is the first Chinese _________ the Nobel Prize in Medicine for her work in developing effective drugs against parasitic disease.
I called Hnnah many times yesterday evening, but I couldn’t get through. Her brother _________ on the phone all the time!
So far this year we _________ a fall in house prices by between 5 and 10 percent.
The hotel wasn’t particularly good. But I _________ in many worse hotels.
I don’t know ________ such a difficult matter.
Mother bought me 3 books on English study, the second ________ I really liked.