This is ________ they solved the problems in the city．

A．when

B．that

C．what

D．how

It worried her a bit ________ her hair was turning grey．

A．while

B．that

C．if

D．whether

The news ________ to Mount Tai during the summer holidays delighted us．

A．we would go

B．which we would go

C．that we would go

D．would we go

These ancient Indians used to live in ________ is now a part of the United Slates．

A．where

B．the place

C．which

D．what

I will give this dictionary to ________ wants to have it．

A．whomever

B．whoever

C．whatever

D．wherever

It is said that in Australia there is more land than the government knows ________

A．it what to do with

B．what to do it with

C．what to do with it

D．to do what with it

The man we followed suddenly stopped as if ________ whether he was going in the right direction．

A．seeing

B．having seen

C．to have seen

D．to see

I've worked with children before,so I know what ________ in my new job．

A．expect

B．to expect

C．to be expecting

D．expect

The manager discussed the plan that they would like to see ________ the next year．

A．carry out

B．carrying out

C．carried out

D．to carry out

The discovery of new evidence led to ________

A．the thief having caught

B．catch the thief

C．the thief being caught

D．the thief to be caught