Question

The explorers say that these valleys are sure to ________ gold mines, not having been found, though．

1. A.
   contain
2. B.
   hold
3. C.
   include
4. D.
   hide

Answer 1

A
句意：探险家们说，这个山谷肯定有金矿，虽然现在还没有找到。此句要用contain表示“含有”。