Questão de Inglês — Preposições | Prepositions — COSEAC 2009
InglêsPreposições | Prepositions
- Código
- qg800584
- Banca
- COSEAC
- Órgão
- DATAPREV
- Ano
- 2009
- Nível
- Superior
Boeing ____ this week that it ____ successfully ____ a manned airplane powered _____ hydrogen fuel cells.
- Aannounced / has / flown / on;
- Bhas announced / had / flown / by;
- Cannounced / has / flown / by;
- Dhave announced / has / flown / on;
- Eannounced / had / flown / on.