Exercise 4:

No preposition: Last night; Yesterday; Next year; Tomorrow morning; Tonight

On: my birthday; Wednesday afternoon; 2 March; 10 July, 1995; Sunday

In: The summer; the morning; 1980; February

At: Nine o’clock; weekend; Midnight; Christmas; Night

Exercise 5:

1, is watching

2, meet; will form

3, moves

4, will do

5, am going to visit

6, am going to see

7, is going to buy

8, will lie

Exercise 6:

2, will probably do

3, are going to

4, will eat

5, will come

Exercise 7:

1, arrangements

2, speech

3, assistant

4, demonstration

5, inventive

6, action

7, differences

Exercise 8:

A – “Thank Cong’s Builders. Good morning”

B-a

A- “I’m afraid he’s not in the office at the moment”

B-f

A – Yes, certainly. Who’s calling please?”

B- b

A – “Is that the meeting about the new factory?”

B – d

A – “I see. And when it is?”

B – c

A – “Don’t worry. I’ll tell him.”