A. The largest cities are __Sydney with over 5 mln people who
are called Sydneysiders and _Melbourne with a population of
4.7 mln. ___ capital of _country is __Canberra which has only
400,000 people.​
Вставить то что нужно где пропуски

Water the flowers! I have already ( just) watered the flowers! Cut the bread please. I have already ( just) cut the bread.  Ann, lay the table for breakfast. I have already ( just) laid the table for breakfast. These boys are playing football. Those boys have already ( just) played football. I am drinking tea. Granny has already ( just) drunk tea. Bobby is drawing animals. Nelly has already ( just) drawn animals. Mary, dust the furniture, please. I have already ( just) dusted the furniture. Do your home task, Alice. I have already ( just) done it. Marry is cleaning the room. Lizzy has already ( just) cleaned the room. My sister is looking through the newspaper. My father has already ( just) looked through the newspaper. They are having dinner. We have already ( just) had dinner. Father, give Fred the magazine, please. I have just given him the magazine.

Should в условных 2 и 3 типа после местоимений 1-го лица сейчас не используется, это правило встречалось в англ. учебниках первой половины ХХ века))  Короче, такое употребление считается old-fashioned.

так что вот ответ:

1 If no one came to help, we would be obliged to do the work ourselves.

2 If you put on your glasses, you would see better.

3 What would we do if they were late?

4 Would you be angry if we didn't come?

5 Would he be displeased if I didn't ring him up?

6 They would be surprised if I made such a mistake.

7 If he didn't come in time, would we have to wait for him?