Question

【题目】He promised _____ his old friend during his stay in Tianjin.
A.see
B.seeing
C.saw
D.to see

Answer 1

【答案】D
【解析】句意为：他承诺在他待在天津期间去看他的老朋友。promise to do sth，表示允诺、承诺。故选D。