(It) is easier (to talk) about a problem (than) to solve (them).

A:It B:to talk C:than D:them

I wish I (have) (someone) to (talk over) this problem (with).

A:have B:someone C:talk over D:with

It's impolite to {{U}}cut in{{/U}} when two persons are holding a conversation.

A:leave B:talk loudly C:stand up D:interrupt

It's impolite to {{U}}cut in{{/U}} when two persons are holding a conversation.

A:leave B:talk loudly C:stand up D:interrupt

It's impolite to cut in when two persons are holding a conversation（　）.

A:leave B:talk loudly C:stand up D:interrupt

It's impolite to cut in when two persons are holding a conversation.

A:leave B:talk loudly C:stand up D:interrupt