Question

英语选择题,告诉我正确答案,并解释.

Answer 1

1)
Lily
often
helps
her
mother
___
the
house.
A.cleaning
B.cleaned
C.clean
D.cleans
选C,
her
mother是宾语,后面的是宾补,所以不能选C和D(因为他们是做谓语的词),clean和主语Lily是主谓关系,所以用现在分词(现在分词表主动,表进行;过去分词表被动,表完成)
2)
l
invited
Peter___
my
birthday
party.
A.for
B.at
C.to
D.in
选C,invite
sb
to
,固定用法(邀请sb去...)
3)
I
often
saw
Jim
___
football
in
the
park
.
A.playing
B.to
play
C.play
D.plays
选A,和1)题类似,现在分词+宾补,表主动,表进行.C.D只做谓语,B,不定式表将来.
4)
I
heard
Kelly
___
when
I
passed
her
house.
A.sing
B.
sang
C.to
sing
D.singing
选D,现在分词做宾补,表主动,表进行.when
I
passed
her
house是状语从句.