Identify and write the type of sentences (positive, negative, question): 1. We have been preparing for our exam since morning. 2. Have they been surfing the Net all morning? 3. Has Sam been shopping for 3 hours?
Задание

Identify and write the type of sentences (positive, negative, question):

  1. We have been preparing for our exam since morning.

[ ]

  1. Have they been surfing the Net all morning?

[ ]

  1. Has Sam been shopping for 3 hours?

[ ]