谁能帮我做几道英语题?用所给的适当形式填空11.Many students study by___(ask)teache

谁能帮我做几道英语题?
用所给的适当形式填空
11.Many students study by___(ask)teachers for help in my class.
12.If you often practice___(run),you will become a good runner like Liu Xiang.
13.The thier ran too fast for me___(catch)up with him.
14.___(study)grammar is good way for me to leaen English.
15.Would you mind mt___(smoke)in your room?
16.Linda got____(frustrate)when she found the mocie ____(frtstrate).
请朋友们帮做下,感激不尽!