Question

Write questios using the passive. Some are present and some are past. 1) Ask about glass. ( How / make? )
2) Ask about television. ( When / invent ?)
3) Ask about mountains. ( How /form ?)
4) Ask about antibiotics. ( When / discover?)
5) Ask about silver. ( What / use for ?)

Answer 1

Resposta:

how to make glass?

when were television invented?

how mountains form?

when were antibiotics discovered?

what is silver used for?

Explicação: