Can you believe his reason for being absent from the class _____ he had to look after his sick mother at home? A.while B.that C when D.as
More wild tigers have been seen in the forest around this area, ________ there used to be very few.
It is usually warm in my hometown in March, but it ________ be rather cold sometimes.
You can never be ________ when crossing the street.
________, you need to give all you have and try your best.
Before Sally left home, her mother kept telling her to ________ her manners at the party.