__ It is so late. Our son __________ be back . __ Don’t worry . I dare say he ________ have some extra work to do.
— ? —Nothing serious, but a bit tired.
He was always _______ for knowledge, and at last became an expert in the field of art.
______ at the crossing and you will see a tall white building.
Rather than ______ at home playing cards on the Internet, I prefer _______ out for a day trip.
Two-thirds of the land ________ covered with green grass and the rest _______ covered with pine trees.