(2013·湖南，26)If nothing________，the oceans will turn into fish deserts

How often do you go skating ——________.I can’t skate at all.

30. This dictionary is of great use, which can help you_________many problems about words and idioms.

What ________ your mother __________—She’s beautiful with bright (明亮的) eyes and long hair.

下列句子中，加点的字解释有误的一组是