[ Simple Past Tense and Past Perfect Tense ]
Before the ambulance came, Dr. Harry and Dr. Wendy ___ cardiopulmonary resuscitation on the patient.
A. had done
B. would done
C. would have do
D. have done

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Present Tense (Negatives and Questions)Irregular Plural NounsPast ContinuousVerb Tenses and UsageFood VocabularyPresent/Past/Future Continuous TensePast simple regular verbsGrammar (want to/ need to/ have to)Present Perfect and Past TensesJobsOther quiz:
Grammar › ViewA:Did you study for the test last night? B:Yes, I did. I ______ until 3 a.m., so(所以)I ______ tired(疲累的)now.
A. studied; was
B. study; was
C. studied; am
D. study; am
Mixed General Quiz › View
The lawyer entered the ___.
a. pleas
b. please