30.Jerry had terrible problems with solving the riddle. (hardly)

=> Jerry could ___________

1. Isn‟t it high time you greased the hinges? (need)

=> ___________________

1. You should take an umbrella with you. BETTER

=> You ___________________ an umbrella with you.

1. It‟s forbidden to take pictures. (not)

=> You _______________________________ pictures.

1. It isn‟t necessary to feed the cats. I‟ve already fed them. (have)

=> You ________________________________________ the cats.

1. It‟s prohibited to take pets into the museum. (not)

=> You ____________________________________ into the museum.

1. It isn‟t necessary to change the sheets. I‟ll do it tomorrow. (need)

=> You _____________________________________________ the sheets.

1. Students aren‟t allowed to leave the dormitory after 11 p.m. (not)

=> Students ____________________________________ after 11 p.m.

1. Kindergarden students needn‟t wear school uniforms. (have)

=> Kindergarden students ______________________________ school uniforms.