语法词汇练习 语法大全 语法详解 英语听力 
One of the difficulties we have         English is how to remember new words and expressions.
#43196
A
to learn
B
in learning
C
learn
D
learned
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推荐题目
This is the school _______ we visited last year.
#42872
A
that
B
where
C
who
D
whose
I’m interested in               you have told me .
#43143
A
which
B
all that
C
all what
D
that
Now China is fighting against illegal cooking oil（地沟油）, a kind of waste oil _____can cause a lot of illness.
#42592
A
which
B
whose
C
who
D
what
Do you like the book _______ is yellwo?
#43067
A
whose cover
B
which cover
C
cover whose
D
cover which
 It has to be a place       we can do lots of exercise.
#42998
A
that
B
when
C
which
D
where