试题题干
Complete each of the following sentences with the proper form of the word in brackets.
(suit) The course is 
for both beginners and advanced students.
参考答案
试题解析
此处缺少形容词。
is是系动词，空后是介词。所以空格处可填形容词做表语。变suit为形容词suitable。be suitable for sb. 意为适合某人。
句意：这种课既适合初学者，也适合高水平的学生。