The scientist decided to devote his life to ____ pollution from ____ again.
A．preventing; happening B．prevent; happen
C．preventing; happens D．preventing; will happen
Tom kept silent about the accident _________ lose his job.
A．so not as to B．in order not to C．in order to not D．not so as to
Iraq has ______ too many wars since 1990, making his people _______ a lot.
A．got through; pay B．looked through; face
C．gone through; suffer D．passed through; destroy
As is known to all, China _______the group of developing countries.
A．belonging to B．was belonged to C．belongs to D．is belonged to
We find _______ difficult to talk to him about anything serious.
A．him B．he C．ourselves D．it
—Thank you for joining in our conversation tonight.
—_____.
A．It’s my duty B．It’s all right C．It’s my pleasure D．With pleasure
