10) When ___ the street, be careful at the crossroads.

a) crossing b) crossed c) having crossed

11) Sleeping cars ___ with an air-conditioning system are very comfortable for long-distance

travel.

a) equipping b) equipped c) having equipped

12) They spent the whole day, ___ the equipment.

a) packing b) packed c) having packed

13) The number of cars ___ a passenger train is much less than that of a freight train.

a) forming b) formed c) having formed

14) An unusual locomotive ___ for the movement on ice was developed in Great Britain in the

18^th century.

a) building b) built c) having built

15) This unusual locomotive was sent to Russia for the transportation of freight on sledges

across ___ lakes.

a) freezing b) frozen c) having frozen

*The results of the test: If your score is 14-15 correct answers, you are doing just great; 11-13 stand for good knowledge; 8-10 mean you have some problems; if the number of your correct answers is less than 8, learn the rules.

Ex.21. Match the two parts of the sentences below. Pay attention to Participles.

1) When speaking English, a) we left the exhibition.

2) Having rememberedsuddenly that b) I felt the change in the atmosphere

she had not locked the door, at once.

3) CAV – is a British firm c) unlesspressed by time.

4) They were speaking d) if needed.

5) He never hurries, e) I often make mistakes.