－Do you mind if I use your tape-recorder?

－________．

A．Certainly, please do

B．No, you can't use it

C．Yes, of course not

D．No, go ahead

The journalist claimed that the information came from a ________ source．

A．reliable

B．confident

C．devoted

D．loyal

We looked forward to the day when the motorcar has been replaced by some less dangerous ________ of transport．

A．means

B．methods

C．manners

D．ways

In dealing with public relations, we should make every effort to prevent the ________ in personality．

A．contact

B．contrast

C．connection

D．conflict

They stood gazing at the happy ________ of children playing in the park．

A．view

B．landscape

C．scene

D．scenery

We will be shown around the city：schools, museums, and some other places, ________ other visitors seldom go．

A．what

B．which

C．where

D．when

The little girl ________ her heart out because she ________ her toy bear and believed she wasn't ever going to find it．

A．had cried; lost

B．cried; had lost

C．has cried; has lost

D．cries; has lost

Meeting my uncle after all these years was an unforgettable moment, ________ I will always treasure．

A．that

B．one

C．it

D．what

The research is so designed that once ________ nothing can be done to change it．

A．begins

B．having begun

C．beginning

D．begun

－Excuse me, sir．Would you do me a favor?

－Of course．What is it?

－I ________ if you could tell me how to fill out this form．

A．had wondered

B．was wondering

C．would wonder

D．did wonder