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　Course 3 > Grammar > Tense > Tense > Progressive Tense　　　　　　　　　　│Text│Exercises│
 
　


　　Exercises
　　Directions: Fill in each of the following blanks with the correct tense of the verb in the brackets.


　　1) The machine (run) well for 50 hours.

　　2) My TV set (work) fine ever since Bill fixed it.

　　3) By the end of next month, we (be) here for three years.

　　4) When he got home his father (leave).

　　5) Up to now Prof. Smith (write) over eighty essays.


　　

　

　

　

　

　

　

　

　

　

　

　
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