The joke told by Tom made us______, so our maths teacher couldn’t make himself______.
Cars do cause us some health problems—in fact far more serious ________ than mobile phones do.
---The mountain village is so beautiful.---Yes. Moreover, ______the villagers live, there is fresh air.
_____ at the back of the temple is the Tianning Tower, which, _____154 metres into the sky, is the tallest tower of the kind in China.
A recent study suggests that teenagers who switch off the TV and sit down to family meals are less _______ to suffer eating disorders.
Tu Youyou is the first Chinese _________ the Nobel Prize in Medicine for her work in developing effective drugs against parasitic disease.