Відповіді: Стр.60 (4-5)

4. Read the examples. Then complete the rules with the words in the examples.

We use:

a. How long to ask a question in the present perfect about a period of time.

b. since to say when something started.

c. for to give the period of time something has continued.

5. Write for or since for these time phrases.

for three weeks, since this morning, for a long time, since 2018, since Monday, for a few years, since four o’clock, since midday