Fill in the blanks. Use:should/shouldnt/must/neednt/have to. Shall I buy some...

Question

Fill in the blanks.
Use:should/shouldnt/must/neednt/have to.
Shall I buy some butter?-No,you ... . We ve got some.
What ... I do to pass the chemistry exam?-You ... work hard and spend more time doing your homework.
Excuse me , I ... ...get to Trafalgar Square. ... I take a bus?-Yes.You ... take buss № 62.

Answer 1

Shall I buy some butter?-No,you ..neednt . . We ve got some.
What ..should . I do to pass the chemistry exam?-You ..must . work hard and spend more time doing your homework.
Excuse me , I .have to.. ...get to Trafalgar Square. .should .. I take a bus?-Yes.You ..must . take buss № 62.