He didn't know whether_____ or _____ when he heard the words.

rmany.

A. that

B. as

C. which

D. this

When he got() the train, he didn’t know where he was.

A、on

B、up

C、off

D、at

A.if to wait

B.to wait

C.whether to wait

D.either to wait

A.why

B.for

C.as

D.because

—Where is Tom —Well , he you here . Otherwise he would come down right now .didn’t know ; were B．—Where is Tom —Well , he you here . Otherwise he would come down right now .didn’t know ; were B．hsn’t known ;re C．doesn’t know ;re D．hdn’t known ; were

A．didn’t know ; were

B．hasn’t known ; are

C．doesn’t know ; are

D．hadn’t known ; were

He didn't know ______ or go home.

A．to wait

B．if that he should wait

C．if to wait

D．whether to wait

the mn phone Intersever Customer Service He wnted to know wht the messge mens. B．He didn’t know which button to choose. C．He wnted to know if he cn use his e-milddress while overses.

A．He wanted to know what the message means．

B．He didn’t know which button to choose

C．He wanted to know if he can use his e-mail address while overseas．

He didn't know or go home.

A．to wait

B．if that he should wait

C．if to wait

D．whether to wait