Nothing (do) ... since Peter bought a computer last week

Put the verbs in the brackets in the correct form of tense :
1. ..... Mr Phong (go) ...... to New York for ten days last year ?
2.When I ( arrive)...... at her house yesterday , she (do) ....... her homeworks
3........ these toys (make) .................. in China ?
4.Nothing (do) ............. since Peter bought a computer last week
5.His new novel (publish) ............ in two months
6.These story books (write)............. by To Hoai in 1956