题目内容：
A、teachesB、has taught
C、is teaching
D、taught
参考答案：
选择题：John's father ______ mathematics in this school ever since he graduated from Harvard University
- 题目分类：西北工业大学
- 题目类型：选择题
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The young seedlings remained alive _____ the protecting snow.
The young seedlings remained alive _____ the protecting snow.
Page, the naughtiest boy in the class, did this thing on ____, knowing it would make her crazy.
Page, the naughtiest boy in the class, did this thing on ____, knowing it would make her crazy.
The manager will not _________ us to use his car.
The manager will not _________ us to use his car.
These are the best movies I _____.
These are the best movies I _____.
I _____ here since I moved here.
I _____ here since I moved here.