22. Food aid______ is the key to______ the problem _______ now.
A.only, solve, discussed
B.alone, solving, being discussed
C.merely, solving, being discussed
D.alone, solve, being discussed
答案:B
22. Food aid______ is the key to______ the problem _______ now.
A.only, solve, discussed
B.alone, solving, being discussed
C.merely, solving, being discussed
D.alone, solve, being discussed
答案:B