27.The speaker came from_______university of_______European country.A.a;a B.an;an C.a;an D.the;不填28.Turning to_______,he suddenly found_______tailor’s shop he was looking for.A.the left;a B.left;the C.the left;the D.left;a 29.I love_______history because it gives us_______knowledge of past events.A.the;a B.不填;a C.不填；不填D.a;the30.The people in the village have learned_______use of various kinds of_______ agricultural tools.A.the;不填B.不填;不填C.a;the D.不填;the

26.-How did they pay the workers? 　 -As a rule the workers were paid_______.

　A.by the hour B.by hour C.by an hour D.by hours