高考英语语法专项练习---定语从句精练300题（3）
101. The doctor ______ she sent her friend is very famous.
A. to whom B. to whose C. whom D. at whom
102. The day ______ you are looking forward to will certainly come.
A. in which B. when C. which D. what
103. Is oxygen the only gas ______ helps fire burn
A. which B. what C. that D. it
104. Those ______ not only from books but through practice will succeed.
A. who learn B. who C. who learns D. learn
105. Do you know the student ______ ?
A. whom I often talk B. with who I often talk
C. I often talk with D. that I often talk
