Can you explain to me __________ this math problem?
A. what to do B. how to do
C. what to do it D. how to do it
Here are some books， could you please _______
A. take out them B. take them out
C. take it out D. take out them
_____ kids learn to be independent， _______ it is for their future
A. the early， the good B. earlier， better
C. the earlier， the better D. early， good
_ I didn’t do homework yesterday，
___________
A. So did I B. Neither did I
C. Neither I did D. So I did
You helped to make ______ possible for me to havethe dog “Lucky”.
A. that B. it C. this D. it is
Last week， I volunteer my time _________ others
A. help B. to help C. helping D.helped
