Question

Coloque as frases na afirmativa

Answer 1

a- they did know how to use a telescope before the class.
b- I watch the teacher's explanation about comets. 
c- she does believe there's life on other planets. 
d- my teacher did explain about gravity in the last science class.
e- the American astronauts were on a mission in space. 
f- she was talking to the people about the city pollution.