The twins are talking about the football match Let’s them.A. join B join in C take part i

问题补充：

The twins are talking about the football match, Let’s them.

A. join B join in C take part in D enter

答案：

解析：考查词义辨析及用法。join sb 表示加入到某人当中，并成为其中的一员，join in或take part in，宾语是活动，enter进入，故选A