Sally goes to visit her grandparents ________ Saturday mornings.
#39127
A
/
B
in
C
on
D
at
推荐题目
________ she ran to the classroom, the teacher had begun the class.
#42120
A
What time
B
By the time
C
At the time
D
During the time
______ trees are cut down in the forests every year.
#36306
A
Thousand
B
Thousands
C
Thousands of
D
Thousand of
