Which sentence uses a helping verb with a main verb? O A. Sentence 6 O B. Sentence 9 O C. Sentence 10 O D. Sentence 19

answer; quote by william wordsworth;

daylight saving time (dst) has been used for more than 100 years. changing the clocks does not create extra daylight, but it causes the sun to rise and set at a one of the aims of dst is to make sure that people's active hours coincide with a german analysis of 44 studies on energy use and dst found a positive