1、The girl was born ______ the morning of June 18th,1991. 【 】
A、at B、on
C、in D、during
2、I am full now. But thank you______. 【 】
A、at the same B、the all time
C、same to you D、all the same
3、He will be back ______ he is free. 【 】
A、while B、because
C、after D、if