1choose the best sentence for the situation. i'min the bathroom! i wash my hair. b i'm in the bathroom! im washing my hair. a a 2 this maths problem is difficult. do you know the answer? b 3 this maths problem is difficult. are you knowing the answer? a do you wait for the school bus? you're in the wrong place! b 4 are you waiting for the school bus? you're in the wrong place! a look at that bike! it costs £350. b look at that bike! it is costing e350 5 a do you understand this exercise? b 6 are you understanding this exercise? a sorry, i'm busy. i do my homework. b sorry, i'm busy. i'm doing my homework.

this is my room! my room is nice and light. there is a big carpet. there is a little table in the middle of the room. there is a bed in the wall. there are cushions on the bed. there is a picture on the wall. there is a chandelier on the ceiling.

the tiger is the largest cat species, reaching a total body length of up to 3.3 metres and weighing up to 306 kg. their most recognizable feature is a pattern of dark vertical stripes on reddish-orange fur with lighter underparts. they have exceptionally stout teeth, and their canines are the longest among living felids, with a crown height of up to 74.5 mm.they are territorial and generally solitary but social animals, often requiring large contiguous areas of habitat that support their prey requirements. this, coupled with the fact that they are indigenous to some of the more densely populated places on earth, has caused significant conflicts with humans. in zoos, tigers have live for 20 to 26 years, which also seems to be their longevity in the wild.