is; that
was; that
was; which
is; which
第1题：
A.while
B.that
C.which
D.when
第2题：
What do we learn about Thomas Jefferson?
[A] His political view changed his attitude towards slavery.
[B] His status as a father made him free the child slaves.
[C] His attitude towards slavery was complex.
[D] His affair with a slave stained his prestige.
从文章的内容来看，Jefferson知道奴隶制是错误的，但是他又作出了compromise(妥协)，从此而知，其对待奴隶制的态度是复杂的(complex).
第3题：
A. so, that
B. such, that
C. such, as
D. so, as
第4题：
He didn't know German, ______ made it difficult for him to study at a university in Germany.
A. that
B. as
C. which
D. this
第5题：
The researcher hopes to assess the degree ______ these tools help solve real-world problem
A.that
B.to that
C.which
D.to which
第6题：
A.this
B.that
C.which
D.what
第7题：
Which of the following is true of the author?
A.He got no access to success.
B.He wrote back to his father at 12.
C.He was surk his parents loved him.
D.He whce asked his father about the letter.
第8题：
A.this
B.that
C.the
D.it
第9题：
What do we learn about Thomas Jefferson?
A．His political view changed his attitude towards slavery.
B．His status as a father made him free the child slaves.
C．His attitude towards slavery was complex.
D．His affair with a slave stained his prestige.
第10题：
This is the third week _______ the dustmen haven’t come for the rubbish.
A.that
B.when
C.which
D.on which