1.Robert Brown and Anna Thompson are planning to attend the conference, and Mr.Pugsley may join _______.

(a)theirs (b)them (c)they (d)themselves

2.Property developers are________ to build a power plant near the residential area.

(a)hesitated (b)hesitation (c)hesitant (d)hesitate

3.Many nations are becoming increasingly _______ on imports from China and India.

(a)reliant (b)relied (c)relying (d)reliance

4.Mr.Bullock left his telephone number with the personnel department so that they could contact ______ to arrange an interview with Ms.Beam.

(a)he (b)him (c)his (d)himself