Plans have been proposed ______ the largest dam in the world to be built along the Congo river.
Hainan is a very large island and it’s the second island in China.
Some students were late for class because they had been _________ by the heavy storm.
________ you don’t lose heart, I’m sure you can pass the coming examination.
—How much of the foreign expert’s speech have you understood?—Almost nothing. I wish I ________ harder at English.
At the crossroads, you have to drive very ________ to avoid traffic accidents.