Which of the following sentences is written in the passive voice? a. my friend searched high and low for the perfect birthday gift for his mother. b. my friend studied all night for a test, and this morning he looked completely wiped out. c. my friend was asked repeatedly to stop throwing rocks at the passing cars. d. my friend called me last week to him out of a tough situation.

Read the passage. (1) the first skateboard was constructed of old roller-skate wheels attached to a piece of wood. (2) improvements were made to the skateboard in 1959. (3) the year that the first commercially made skateboard appeared. (4) soon after, skateboarding began to grow in popularity. (5) in 1963, skateboard manufacturers formed the first professional skateboarding team. (6) that same year, the first organized skateboard competition took place, in california. which is the most effective way to correct the fragment in sentence 3? attach the fragment to sentence 4. attach the fragment to sentence 2. insert the phrase in the united states to the end of the fragment. insert the verb had before the verb appeared.