Question

You'd better ______ bed and not move your leg too much.

1. A.
   to stay in
2. B.
   to stay
3. C.
   stay in
4. D.
   lie

Answer 1

C
had better后跟动词原形；虽lie有“躺下”之意，但需介词in与bed连接，表示“躺在床上”，故选C。