Употребите am,is,are,have,has по смыслую 1 this an acute angle. 2 that right. 3 triangles three sides. 4 their sides equal. 5 that enought. thank you/ 6 he got two brothers and a sister. 7 you got any english books? 8 it late? 9 it correct? 10 the picture on page 33.