27) When evaluating a CALL program, it is especially useful to make ............ to see how the program responds - e.g. give wrong answer and press the wrong keys etc.
a) deliberate mistakes
b) unconscious mistakes
c) no mistakes
d) all the above
الجواب A
في ببعض الاختبارات السابقة يجيب اختيار
mistakes deliverated
Focus