注意：此页面搜索的是所有试题
题目内容
（兰州大学大学英语4）
5.(4分)If the test taker finds an item to which an answer is not known, it may be ________ to leave it blank and go on with the test.
A. valuable
B. advisable
C. considerable
D. probable
A. valuable
B. advisable
C. considerable
D. probable
参考答案