grammar tast

A) Fill in the following blanks with the correct form of the verbs given in brackets.
1- The ships ------------------ (sail/sails) on the seas.
2- My mother ------------------ (help/helps) me with my project work.
3- Mohamed ------------------ (polishes/polish) his shoes everyday.
4- Dad generally ------------------ (go/goes) to his office at 10 o'clock.
5- Monika ------------------ (brushes/brush) her teeth before going to bed.
6- My elder sister some times ------------------ (does/do) the shopping.