Question

Let's make it ________ a quarter to six.

1. A.
   to
2. B.
   at
3. C.
   in
4. D.
   /

Answer 1

D
大多数学生认为点钟前应用介词at，所以就将选项B当作正确答案了。在此句中a quarter to six是it的宾语补足语，前不能加介词。