问题
选择题
______ the pieces of cloth with a loose stitch before finally sewing them together.
A．Join
B．To join
C．Joining
D．Joined
答案
答案：A
考查非谓语动词。句意“在最终缝合之前，用松散的针法先把布连起来。”本句是祈使句，应该用动词原形开头。故选A。
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