17. You have to stop _____ so much if you want to stay healthy.
(A) to drink and smoke
(B) drink and smoke
(C) drinking and smoking
(D) be drinking and smoking
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統計: A(34), B(16), C(345), D(2), E(0) #2897519
統計: A(34), B(16), C(345), D(2), E(0) #2897519