Question

Jim，my pal friend，knows a lot ofthings about China．He________lots ofbooks about China．

1. A.
   must read
2. B.
   may read
3. C.
   must be reading
4. D.
   must have read

Answer 1

D
分析：must read(必须读)，may read(可能读)(指将来)或(可以读)(表示“许可”)，must be reading(一定在读)(现在，很有把握的“可能性”)，must have read(一定读过)(过去，很有把握的“可能性”)，句意是“他一定看过”，是指“过去”，所以选D项。