Please help me to answer this questions

1. What...... Mary for her birthday?
A. About buying
B. Shall we buy

2.one argument............ Not smoking is that you save a lot of money
A. In favor of
B. To agree with

3.the film sounded interesting but it.......... To be really boring.
A. Worked out
B. Took off
C. Came round
D. Turned out​