(
)—
it rainy last Sunday? —No. It was cloudy.
A.Did
B.Was
C.Were
D.Is
点拨 问句中的rainy是形容词，应与be动词连用，而不能与助动词连用，先排除选项A；问句的主语it是第三人称单数，所以be动词也应用单数，排除选项C；由last Sunday可知，问句的时态为一般过去时，be动词应用过去式。故选B。
答案：B
解析：
首先，句中的rainy是形容词，需要和be动词搭配使用，助动词Did后要接动词原形，排除A选项；其次，句子主语it是第三人称单数，be动词要用单数形式，排除表复数的Were选项C；最后，时间状语last Sunday表示过去，句子为一般过去时，排除表现在时的Is选项D，因此正确选项为Was。
[反馈练习]将下列句子改为一般疑问句,并作肯定和否定回答。
1. Alice got back her lost wallet from the teacher.
—
Did
Alice
get
back her lost wallet from the teacher?
—
Yes
,
she
did
. /
No
,
she
didn't
.
2. I was in the classroom just now.
—
Were
you
in the classroom just now?
—
Yes
,
I
was
. /
No
,
I
wasn't
.
3. My mother went shopping last Saturday.
—
Did
your
mother
go
shopping last Saturday?
—
Yes
,
she
did
. /
No
,
she
didn't
.
答案：1. Did, get, Yes, she did, No, she didn't
2. Were you, Yes, I was, No, I wasn't
3. Did your, go, Yes, she did, No, she didn't
