The students (work) very well this term

19 I only (hear) from him twice since he went away.

20 I (hear) from her regularly. She is a very good correspondent.

21 I (grease) my car. That's why my hands are so dirty.

22 I (polish) this table all the morning and she isn't satisfied with it yet.

23 I (work) for him for ten years and he never once (say) 'Good morning' to me.

24 He (teach) in this school for five years.

25 I (teach) hundreds of students but I never (meet) such a hopeless class as this.

26 Why you (be) so long in the garage? ~
The tyres were flat; I (pump) them up.

27 I (pump) up three tyres. Would you like to do the fourth?

28 I (look) for mushrooms but I (not find) any.

29 He (cough) a lot lately. He ought to give up smoking.

30 You (hear) the news? Tom and Ann are engaged! ~
That's not new; I (know) it for ages!

31 I (try) to finish this letter for the last half-hour. I wish you'd go away or stop talking. ~
I hardly (say) anything.

32 The driver of that car (sound) his horn for the last ten minutes.

33 It (rain) for two hours and the ground is too wet to play on, so the match (be) postponed.

34 He (hope) for a rise in salary for six months but he (not dare) to ask for it yet.

35 Mr Smith, you (whisper) to the student on your right for the last five minutes. You (help) him with his exam paper or he (help) you?

36 Why you (make) such a horrible noise? ~
I (lose) my key and I (try) to wake my wife by throwing stones at he window. ~
You (throw) stones at the wrong window. You live next door.

for and since
PEG 187

Fill the spaces in the following sentences by using for or since.

1 We've been fishing... two hours.

2 I've been working in this office... a month.

3 They've been living in France... 1970.

4 He has been in prison... a year.

5 I've known that... a long time.

6 That man has been standing there... six o'clock.

7 She has driven the same car... 1975.

8 Things have changed... I was a girl.

9 The kettle has been boiling... a quarter of an hour.

10 The central heating has been on... October.
11 That trunk has been in the hall... a year.

12 He has been very ill... the last month.

13 I've been using this machine... twelve years.

14 We've been waiting... half an hour.

15 Mr Pitt has been in hospital... his accident.

16 He hasn't spoken to me... the last committee meeting.

17 I have been very patient with you... several years.

18 They have been on strike... November.

19 The strike has lasted... six months.

20 It has been very foggy... early morning.

21 They have been quarrelling ever... they got married.

22 I've been awake... four o'clock.

23 I've been awake... a long time.

24 We've had no gas... the strike began.

25 I've earned my own living... I left school.

26 Nobody has seen him... last week.

27 The police have been looking for me... four days.

28 I haven't worn low-heeled shoes... I was at school.

29 He had a bad fall last week and... then he hasn't left the house.

30 He has been under water... half an hour.

31 That tree has been there... 2,000 years.

32 He has been Minister of Education... 1983.

33 I've been trying to open this door... forty-five minutes.

34 He hasn't eaten anything... twenty-four hours.

35 We've had terrible weather... the last month.

36 Nobody has come to see us... we bought these bloodhounds.