在人类退化的舌 * * 是
A．轮廓 * * 和叶状 * * B．丝状 * * C．菌状 * * D．叶状 * * E．轮廓 * *
参考答案：D
There _____ going to ______ a meeting this afternoon.
A．is, be
B．is, have
C．are, be
D．are, have
