What good news! Such a successful gene ______ in pigs that it enables the pigs to produce human serum albumin, a protein made by the liver. Look! Here ________.
A. have they modified…they come.
B. did they modify…come they
C. they have modified…are coming they
D. they modify…they are coming
学英语新高考高二课标答案202145期试题答案
After his journey from abroad, Richard Jones returned home, ______ .
A. energetic B. confirmed
C. exhausted D. independent
学英语新高考高二课标答案202145期试题答案
学英语新高考高二课标答案202145期