We knew little about Shu-How Lin, a basketball player from New York Knicks, ____

题型：不详难度：来源：

We knew little about Shu-How Lin, a basketball player from New York Knicks, _______ we watched the basketball matches in NBA.
A. until                B. if                   C. so           D. because

答案

A

解析

until和 till同义为 直到…… ，till多用于口语，until可以放在句首，till不能。until和till用于肯定句中，主句的谓语动词必须是延续性动词，表示这一动作或状态一直延续到until和till所表示的时间为止。