By the middle of the 21st century, the vast majority of the world ’s population will be living in cities _______ in the country.
A、otherthanD
本题考查词组辨析。ratherthan：与其…(不如);不是…(而是)。句意：到二十一世纪中叶，世界上大多数人口将生活在城市而不是农村。
Touristexpenditureshavedifferenteffectsonadestinationeconomy:salesbyfoodvendorstorestaurantsare_______effect;whiletaxifaresandairlineticketsalesare_______effect.
The missing boys were last seen ________ near the river.
A well-known example of the large scale destruction of an ecosystem through vegetation removal to accommodate tourist facilities is the case of the _______.
Motivationandpersonalitymay________thevaryingdegreesofsuccessinone’scareer.
NeitherEnglishnorChinese________difficulttolearn.
