—Have you finished the work?
—Not yet, but no matter how hard it is, we'll keep ___ until we make it.
B
暂无解析
Bylocaldoctorsandnurses,wehopemorepeople.
The____ofAIDShasledtoanexpansioninresearchseekingacure.
Theoldmanlivesinavillage_______,butheneverfeels________.