нужно выбрать правильную букву варианта. буду очень благодарна очень нужно

Объяснение:

А и только а

1) Who has been choosing a present for Molly for two hours?

What has she been doing with a present for Molly for two hours?

What has she been choosing for Molly for two hours?

Who has she been choosing a present for two hours for?

2) Who has been planning their trip to Spain for a week?

Whose trip have they been planning to Spain for a week?

What have they been planning to Spain for a week?

How long have they been planning their trip to Spain?

3) Who has been reading this magazine since 6 o’clock?

What have you been doing with this magazine since 6 o’clock?

What have you  been reading since 6 o’clock?

4) What has Jack been doing in the mountains since morning?

Where has Jack been skiing since morning?

Since when has Jack been skiing in the mountains?

5) Who has  been cleaning the flat for four hours?

What have we  been doing with the flat for four hours?

What have we  been cleaning for four hours?

How long have we  been cleaning the flat?

Объяснение: