词组 | had to |
释义 | must • had to - Our son was very ill last night and we had to call the doctor. (Not *must call* *musted call* *musted to call*) (must has no past form and we use had to to express 'inescapable obligation' in the past) - My lawyer said he must/had to warn me not to answer any questions. (we can use must or had to as past forms in indirect speech) |
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