Question

_____ you make a promise, you should keep it.

A．Though

B．Unless

C．Now that

D．Even if

Answer 1

C

考查连词：A.Though 虽然，表示转折，B. Unless除非，表示条件，C. Now that既然，表示原因，    D. Even if即使，表示让步，句意是：既然你许诺来了，你要信守诺言。选C。