Test
Exercises on the corresponding Mental Map. Useful for periodic reviews. Links for further exercises:
A1-: https://uapa.cuaieed.unam.mx/avi/ing_1/U_4/ing1_u4_t1/index.html ; https://uapa.cuaieed.unam.mx/avi/ing_1/U_3/ing1_u3_t1/index.html ; https://uapa.cuaieed.unam.mx/avi/ing_1/U_3/ing1_u3_t2/index.html ;
A1+: https://uapa.cuaieed.unam.mx/avi/ing_2/U_3/ing2_u3_t1/index.html ;
A2+: https://uapa.cuaieed.unam.mx/avi/ing_4/U_1/ing4_u1_t1/index.html ;