从B栏中选择能回答A栏中各句问题的选项,将序号填入题前括号里。
Therearesomanyapples___thattree. A.in B,onC.atD.from
Therearesomebirdssinging___thetrees.
Mygrandfatherwasborn____Oct.10,1935.
Timsuddenlyreturned____arainynight.
Alotofstudentsinourschoolwereborn____March,1981.