Question

----Did you call Sara back ?
----I didn’t need to ,_____ we’ll have a meeting together tonight.

A．though .

B．unless

C．because

D．if

Answer 1

C

连词辨析。Though虽然，尽管；unless除非；because因为；if是否，如果。句意：你喊萨拉回来了吗？——我不必。因为我们今晚一起有个会议。故选C。