Помогите задать специальный вопрос.

The proper solution has been for since the scientists discovered the problem.

Прочитайте предложения в видо-временнойформе Present Perfect Continuous, задайте cпециальный вопрос, начиная со слов данных в скобках: Образец: It has been raining since morning. (Since when ... ?) Since when has it been raining? 1.

Помогите задать специальный вопрос. 1. The proper solution has been for looking since the scientists discovered the problem. 2. Knowledge of physiology and neuroanatomy is being used by modern psychologists.

Choose the right tense form. Nina has been learning/has learned English for 2 years. The birds have already flown/have been flying to the South. They have known / have been knowing him for many years.

IW. Choose the right one: Present Perfect or Present Perfect Continuous. 1. We have been / have been having French courses since September. 2. Nigar has read/has been reading some magazines for an hour. 3.

Подскажите какое это время? и какое предложение active/passive. 1. The proper solution has been for since the scientists discovered the problem. 2. Knowledge of physiology and neuroanatomy is being used by modern phychologists? 3.