The boy said ______ couldn’t he work out the problem but his teacher didn’t know how to do it.
A. though B. never
C. hardly D. not only
The boy said ______ couldn’t he work out the problem but his teacher didn’t know how to do it.
A. though B. never
C. hardly D. not only
D
依据倒装语序(couldn’t he work)排除A项;由于使用了couldn’t,就不能再用never或hardly,故选D项。另外not only与后文的but也一致。