什么导致了这个疾病？What the illness？
A: cause
B: does cause
C: caused
D: did cause
A: cause
B: does cause
C: caused
D: did cause
举一反三
- —————————— is not clear. A: what caused the accident B: what did cause the accident
- What problems does urbanization cause?
- Global warming is mainly _______ by greenhouse gases emission. A: cause B: to cause C: causing D: caused
- 什么导致了这个疾病？ What the illness？
- – Have they found out the _____ of the fire? -- Yes. It was a cigarette end that _____ the fire. A: cause; started B: reason; caused C: causing; caused D: reason; cause