Question

4. Due to the traffic jam,thousands of passengers remained on the freeway.

   A. stuck   B. sticking

   C. to be sticking   D. to have stuck

Answer 1

4. A

4. A解析：remain为系动词，后接形容词 作表语。句意：由于交通拥挤，成千上万 的旅客被困在高速路上。