1 . She thought I was talking about her daughter , _____, in fact , I was talking about my daughter .

A．whom

B．where

C．which

D．while

2 . Russia won the host right of the 2018 World Cup           England lost it on December 2.

A．before

B．or

C．while

D．even if

3 . The problem of the present world is that those who are imaginative have little experience_________those who are experienced have weak imagination.

A．unless

B．although

C．because

D．while

4 . Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more.

A．while

B．or

C．for

D．so

5 . Stand over there_______you’ll be able to see it better.

A．or

B．and

C．but

D．while

6 . ---Did you look up the time of trains to New York?
--- Yes, but the early train has been cancelled _______ the heavy fog.

A．because

B．as for

C．in spite of

D．due to

7 . ________ everyone else wouldn't go to the mountain area, he went without a second thought.

A．As long as

B．While

C．Where

D．In spite of

8 . ______ scientists know where a storm will happen, winds will suddenly change, carrying the storm to a new direction.

A．Even if

B．Since

C．Despite

D．Unless

9 . The conflict had developed into a stage ______ the two countries were gathering big troops on the border.

A．where	B．when
C．which	D．that

10 . ________difficulties we may come across, we’ll help one another to overcome them.

A．Wherever

B．Whatever

C．However

D．Whenever