________ he has many friends, he is often feeling lonely.
A、AsC
状语从句的从属连词的选取。
Bythemiddleofthe21stcentury,thevastmajorityoftheworld’spopulationwillbelivingincities_______inthecountry.
______aretheprimarydestinationsfortheChineseatpresent.
______innsandtaverns,inparticular,gainedareputationforcleanlinessandcomfortandsetthestandardforaccommodationinotherpartsofEurope.
________inthought,healmostranintothecarinfrontofhim.
Thepolicemancameuptothelonelyhousewiththedoor_______,_______thereforawhileandthenenteredit.
