单选题 The desertification of this area forced thousands of people ______ to a new place.

单选题 The number of the final voters should be _______.

单选题 The snowstorm prevented the mountaineers from reaching the _______ of the mountain.

单选题 You should do everything by yourself. Don’t be too ______ on others.

单选题 It is a top ______ for a student to learn his lessons well.

单选题 Luggage in _______ of 20kg is taxed.

单选题 I find it difficult to work at home because there are too many _______.

单选题 Mary is talkative and likes to interact with people while her sister is not so _______.