\(\text{45.C(be used to+V-ing:quen làm gì)}\\\text{46.B(reported speech)}\\\text{47.D(if 1;ought to+V-inf,want+to V)}\\\text{48.A(In spite of/Despite+V-ing=Even though/Though/Although+clause)}\\\text{49.D(mệnh đề quan hệ,his bicyce->whose bicycle)}\\\text{50.C(mệnh đề quan hệ;the church->which)}\)
