—David has made great progress recently. — _______，and _______.
正确答案： B
本题解析：
以 so 开头的句子如果是表示前面所表达的内容也适合于另一个人或物时，句子要用倒装语序，这时前后的主语不一致; 但当 so 开头的句子只是重复前一句的意思， 表示“的确”，“如此”，前后主语是同一人或物时，句子不用倒装语序。根据题目的意思，本题的答案是 B。
Washing the food down with water as a substitute ________ chewing is not a good habit
He ________ his poor judgment ________ Jet Lag.
Police are ________ the disappearance of two children.
Each of us should _______ aside a few minutes to have a rest every day.
We were told that the stone figure _______ back to the 16th century was of great value.
Perseverance is a kind of quality and that is _______ it takes to do anything well.
You should help them ________ when your friends quarrel with each other.
We are interested in the weather because it _______ us so directly—what we wear, what we do and even how we feel.
If you try to learn too many things at a time, you may get ________.