ACTIVITY SHEET EPISODE 18: SALINITY Based on the context, identify whether the adverbial clause of time in the following sentences is formed using a time sequence marker, the present or the perfect participial form Question 1: After melting the copper in the smeltery, the workers pour it into a mould for pipes Answer: a time sequence marker b present participial form c perfect participial form Question 2: Before the farmers load the wheat onto the trucks, it is harvested from the field Answer: a time sequence marker b present participial form c perfect participial form Question 3: Having struck oil in the desert, the engineers documented the location Answer: a time sequence marker b present participial form c perfect participial form Question 4: While going to class, Jane witnessed the accident in the chemistry lab Answer: a time sequence marker b present participial form c perfect participial form Question 5: Having passed the final exam, the students will be accepted into the Diploma program Answer: a time sequence marker b present participial form c perfect participial form Page of Question 6: Before travelling to the Amazon, Tom will get some malaria tablets Answer: a time sequence marker b present participial form c perfect participial form Question 7: When the trees arrive at the paper mill, they are stripped of bark Answer: a time sequence marker b present participial form c perfect participial form Question 8: After completing its life cycle, the tree fern begins again Answer: a time sequence marker b present participial form c perfect participial form Question 9: When the hatched turtles returned to the sea, they were attacked by the seagulls Answer: a time sequence marker b present participial form c perfect participial form Question 10: While the wood pulp is cleaned, it is chemically bleached Answer: a time sequence marker b present participial form c perfect participial form Page of ANSWERS After melting the copper in the smeltery, the workers pour it into a mould for pipes b present participial form Before the farmers load the wheat onto the trucks, it is harvested from the field a time sequence marker Having struck oil in the desert, the engineers documented the location c perfect participial form While going to class, Jane witnessed the accident in the chemistry lab b present participial form Having passed the final exam, the students will be accepted into the Diploma program c perfect participial form Before travelling to the Amazon, Tom will get some malaria tablets b present participial form When the trees arrive at the paper mill, they are stripped of bark a time sequence marker After completing its life cycle, the tree fern begins again b present participial form When the hatched turtles returned to the sea, they were attacked by the seagulls a time sequence marker 10 While the wood pulp is cleaned, it is chemically bleached a time sequence marker Page of