1. Hoping that he might be able to _____the problem，I asked Manio to look at the engine.

A shed light on

B make light of

C bring light to

D set light to

2. His_____ and unwillingless to learn from others prevent him from being an effective member of the team.

A arrogance

B dignity

C humility

D solitude

3. The economy grew at its fastest rate since 1980 thanks to a（n）______in world trade.

A inflation

B stimulus

C bulge

D boom

4. He decided he was going to take______ for the murder of his sister

A refuge

B testify

C certify

D allege

5. No one expected him to ____against his former employer.

A dedare

B testify

C certify

D allege