【选择题英语问题】1it takes ___ half an hour ___ his homework every d

【选择题英语问题】1
it takes ___ half an hour ___ his homework every day.
[he;do/he;to do/him;to do/him;doing]

miss green buys some pens and notebooks _____.
[for we/for us/to we/to us]


let's go ___ in the park.
[jog/jogs/to jogging/jogging]


why not ___shopping now?---good idea!
[go/goes/go to/going]