问题
选择题
________ a certain doubt among the people as to the practical value of the project.
A．It has
B．They have
C．It remains
D．There remains
答案
答案：D
句意：关于那个工程的实用价值，人们还是心存某种疑虑。there remains...意为“仍有……”，为there be句型的变体。名词doubt往往与there be句型及其变体连用构成固定句型。