After they ........... their rucksacks, they rode away on their bikes.Fill in using past perfect tense.
Ahad packed
Bhad packing
Chad pack
Dhave packs
Ahad packed
Bhad packing
Chad pack
Dhave packs
Related Questions:
Spot the error:
He will been(A)/ working the(B)/ whole day tomorrow(C)/No error(D).