Hefellasleepimmediatelylastnight;hemust________(be)verytired.
Herefusedtotelluswhetherhe________(undertake)thejob.
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
“Haveyoumovedintothenewflat?”“Notyet.Therooms________(paint).”
Howlong________they________(dig)theditch?