________ he has many friends, he is often feeling lonely.
C
状语从句的从属连词的选取。
Chinaisamountainouscountry.Hills,mountains,andplateauscover_______ofthetotalarea.
The visiting minister expressed his satisfaction with the talks, ________ that he had enjoyed his stay here.
PoorspeakerofEnglishthoughhewasatthetime,hestillmanagedtomakehimself________.