If you knew time as well as l do,you wouldn't talk about wasting it.
a.you don't know time as well as I do.
b. you know time like me
c.you often waste time
d. you talk about wasting time

Exercise 1. Поставьте глагол в скобках в правильную форму (Present Perfect / Past Simple)

1. I _have never been to the USA. I __wanted to go there last summer but I couldn’t.

2. He has lived in this street all his life.

3. His father came back to London last Sunday.

4. Yan __wrote a letter to Nick two days ago.

5. He __sent his letter yesterday.

6. They _have just bought some postcards.

Exercise 2. Выберите из двух форм правильную форму глагола

She‘s had a moped since she was 15.

We took taken a taxi to town that morning.

We played  volleyball last night

I'm really hungry. I haven’t eaten since last night.

They visited Colorado last summer.

Exercise 3. Образуйте вопрос с использованием вопросительного слова из предложения

My sister eats sweets every day. (Who eats sweets every day?)

He doesn’t go to the country this summer (Will he go to the country this summer?)

I haven't seen Peter since Saturday. (Since when haven't I seen Peter?)

They are planning to have a holiday soon. (Who is planning to have a holiday soon?)

She made a beautiful dress for herself last week. (What did she make for herself last week?)

Everybody is waiting at the door to the museum. (Was everybody waiting at the door to museum?)

He didn't know how he could help his friend. (Why didn't he know how could he help his friend?)