life will continue on the earth for millions of years to come will depend on the problem of pollution can be solved.
Though ___________ to see us, the professor gave us a warm welcome.
The teacher stressed again that the students should not ________ any important details while retelling the story.
The living room is clean and tidy, with a dinning table already ________ for a meal to be cooked.
Doctor have said that as many as 50% of patients don’t take medicine _______.
In April last year, thousands of holiday-makers in Europe remained ___________ abroad due to the volcanic ash cloud.