Question

My brother _____  to the ground while ____  his bicycle and hurt his leg .

A． falls; is he riding	B． fell; he was riding
C． fall; he is riding	D． felt; was he riding

Answer 1

B

試題分析：句意：我哥哥騎自行車(chē)時(shí)摔到地上摔傷了腿。while后跟過(guò)去進(jìn)行時(shí)，此處主句用過(guò)去時(shí)，fall的過(guò)去式是fell，故選B。