Make the letter A, B, C or D to indicate the correct answer to each of the following

Make the letter A,B,C or D to indicate the correct the correct answwer to each of the followwing
 1. He thinks robots might ____ us do the housework
A. helps
b. help
c. helping
d.to help
2. Make the letter a,b.c or d to indicate the word whose underlined part is different
a.cold
b.open
c.come
d.home
3. _____ you like a cup of tea
a. would
b. what
c. does
d.will