下列结论错误的是（　　）

A．命题“若p，则q”与命题“若¬q，则¬p”互为逆否命题

B．命题p：∀x∈[0，1]，e^x≥1，命题q：∃x∈R，x²+x+1＜0，则p∨q为真

C．若p∨q为假命题，则p、q均为假命题

D．“若am²＜bm²，则a＜b”的逆命题为真命题

Happily for the boy's parents, he is working harder and harder to________ his lost time.[ ]

A. make up for

B. catch up with

C. make use of

D. keep up with