VII. You completed your practical work at the Machine-building plant last week.

a) Say what work had been done by the end of your practice.

EXAMPLE: to perform a lot of different operations

A lot of different operations had been perfomed by the end of the practice.

to study the operation of the milling machine

to deliver a new model of a lathe

to instruct the students properly

to investigate the advantages of machine tools

to obtain valuable practical experience

b) Say what work will have been done by the end of this term.

EXAMPLE: to write the course project

The course project will have been written by the end of the year.

to carry out the research on machine tools

to repair the old cutting tool

to demonstrate the work of metal-cutting machines

to perform various operations on the drilling machine

to experiment with metal-forming machines

VIII. Ask all possible questions. Consult the tables below.

		The device	had been repaired	in our lab	by the end of the day.
	Had	the device	been repaired	in our lab	by the end of the day?
By what time	had	the device	been repaired?
Where	had	the device	been repaired?
	What		had been repaired	in our lab	by the end of the day?

1. A new machine tool had been devised by the end of the week.

2. The experiment bad been finished in our laboratory before the les­son was over.

3. The engineers had improved the design of this machining centre before the plant began to produce it.

		The workpiece	will have been cut	by 2 o'clock.
	Will	the workpiece	have been cut	by 2 o'clock?
By what time	will	the workpiece	have been cut?
		What	will have been cut	by 2 o'clock?
		What	will have been done	by 2 o'clock?

1. A new milling machine will have been introduced in this plant by the beginning of May.

2. A new cutting tool will have been put into operation by the time our workshop opens.

3. The research will have been completed by a group of engineers by the time you arrive.

IX. Correct mistakes in the following sentences.

1. New safety rules have been established by the end of the last year.

2. A new device will be designed by next week.

3. Will have the design of the tool been improved by the end of September?

4. The necessary tools were brought into the laboratory by the begin­ning of the experiment.

5. These new properties of the substance had predicted by the scien­tists before the experiment began.

6. The construction of the workshop will have be completed by next year.