... to + P (sit 2, sit 6, sit 12) 65……………………Table 12 Common strategies by ES and VL in gratitude expressions .70 ………………Graph 1 Use of sub-acts with respect to + P (sit 1, lecturer) .…… ………… 46………Graph ... ……………… . 48………Table 6 Use of sub-acts with respect to = P (sit 6, money) ..… ……………… ... 52…Table 7 Use of sub-acts with respect to = P (sit 9, books) .……… ……… . 56………Table 8 Use of sub-acts with ... number) .58………………Graph 6 Use of sub-acts with respect to - P (sit 12, phone number) .59………………Graph 7 Use of sub-acts with respect to - R (sit 1, sit 9, sit 11) .. ..63…………… ……Graph 8 Use of sub-acts...