I will be worried, so you ......phone me every evening. 1)must 2)have 3)should to

To save money you ...........take a sandwich to eat on the train.

1)must to  2)ought 3)should

1.must.

2.should.

 Если помогла,то поблагодари,ок? )

1. must

2. should

Хотя в первом случае можно взять и have to