1.The president requested that the committee( )the problem more carefully.
问题描述：
1.The president requested that the committee( )the problem more carefully.
A.studied B.study
C.would study D.must study
2.The volunteers who have （ ） good knowledge of ( ) English language made a great contribution
to the overall success of the 2008 Olympics.
A.两空均不填 B.a;不填
C.a;the D.the;the
3.There were ( )many grammer mistakes in Tom's essay ( )the professor told him to write it again.
A.so;that B.such;that C.such;as D.so;as
答
1,B虚拟语气；
2,C,have a knowledge of sth 知晓,精通;english=the english language,
3,A,如此多的.以至于.