My mother is _______ busy _______ she can’t cook for us at noon.

stronauts return to the earth’satmosphere, helicopters fly to________they would land, ready to collect them.

He didn’t ________ what I said because his mind was on something else.

He looks very sad because someone _______ his home andtook away his computer last night.

It _____ me half an hour _______ to school every day last term.