Question

Nobody knows ______. A.what is happened to him

B.what is the metter with him
C.what is the weather like
D.how long he has joined the army

Answer 1

D。

追问

为什么？

追答

宾语从句，后面接陈述语句的。ABC一看what is 这是问句。不是陈述句。所以不选abc

追问

可是BC本来就是陈述语序，D不应该是he has been in the army吗

追答

奥！对，你对。
这道题考察的是，失态。是句子前后的时态
宾语从句遵从前后时态一致。
答案，应该是B .matter没拼写错的话。
D 的时态错误。A不要is
c不符合逻辑，要用will

不好意思啊，看的太快了。