The importance of protecting the environment seemed ________ until many families lost their homes because of dust and draught.

[　　]

A．not to have realized

B．to have not realized

C．not be realized

D．not to have been realized

The ship is reported ________ in the Red Sea, and large quantity of oil is leaking out of it.

[　　]

A．to sink　　　　　　　B．to have sunk

C．to be sinking　　　　 D．to have been sunk

Strictly ________, I am his stepfather, not his father.

[　　]

A．to speak　　　　　B．speaking

C．so to speak　　　　D．to talk

I'll take any work that is offered to me; I can't afford to ________.

[　　]

A．pick and choose　　　　 B．pick and select

C．choose and select　　　　D．select and select

She hurriedly ________ the child and took him downstairs.

[　　]

A．put on　　　　 B．dressed

C．have on　　　　D．wear

Problems often ________ in our work. We should try to solve them.

[　　]

A．meet　　　　B．come

C．find　　　　D．come up

　　——Why ask me to take that early bus?

　　——Because that bus ________ the 9:30 p.m. train at Changsha.

[　　]

A．joins to　　　　　　 B．joins with

C．connects with　　　　D．unites with

The Arab insisted that he ________ the camel before.

[　　]

A．saw　　　　　　　　B．see

C．had seen　　　　　　D．has seen

I'll drink to his health ________ its being Christmas Day.

[　　]

A．in honor　　　　　　　　B．in honor of

C．on its honor　　　　　　 D．the honor to

Thank you for ________ the trouble ________ me with the work.

[　　]

A．having; helping　　　　　　　　B．taking; helping

C．taking; to help　　　　　　　　 D．having; to help