________ we have enough evidence, we can't win the case．

A．Once

B．As long as

C．Unless

D．Since

John invited about 40 people to his wedding, most of ________ are family members．

A．them

B．that

C．which

D．whom

It's not easy to change habits, ________ with awareness and self-control, it is possible．

A．for

B．or

C．but

D．so

I felt very tired when I got home, and I ________ straight to bed．

A．go

B．went

C．had gone

D．have gone

My uncle hasn't been able to quit smoking, but at least he has ________．

A．cut out

B．cut down

C．cut up

D．cut off

The manager wants to see changes in the company, and I am sure he will ________．

A．in particular

B．in turn

C．in charge

D．in time

Although Rosemary had suffered from a serious illness for years, she lost ________ of her enthusiasm for life．

A．some

B．neither

C．none

D．all

The children ________ lost in the woods; otherwise, they would have been at the lakeside camp as scheduled．

A．must have got

B．must get

C．should have got

D．should get

It remains to be seen ________ the newly formed committee's policy can be put into practice．

A．that

B．which

C．what

D．whether

Marco Polo is said to have sailed on ________ Pacific Ocean on his way to Java in ________ I thirteenth century．

A．the; a

B．a;/

C．/; the

D．the; the