It is so wet there that the trees are extremely tall, some ________ over 90 metres.

It is so wet there that the trees are extremely tall, some ________ over 90 metres.

A．are measured      B．measuring         C．measured         D．measure

It is so wet there that the trees are extremely tall, some ________ over 90 metres.

1. A.
   are measured
2. B.
   measuring
3. C.
   measured
4. D.
   measure

. It is so wet there that the trees are extremely tall, some _____ over 90 metres.

   A. measure   B. measured   C. measures   D. measuring