heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
Iwonderifhecouldgetit________(do)beforetomorrow.
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
“Haveyoumovedintothenewflat?”“Notyet.Therooms________(paint).”
Ipreferthisdiagram________thatone.
Heaskedmewhethermybrother________(fly)toBeijing.
