It’s the third time ____ I have been here.
A．that
B．when
C．after
D．who
答案：A
选出并改正下列句子中的错误。
( ) 1. We have many special holiday. _______________
A B C D
( ) 2. It's going to the year of the ox. _______________
( ) 3. Can you see what I've clean. _______________
( ) 4. In the evening, our family have supper together. _______________
( ) 5. What food are you like best? _______________
（）其上口在幽门处与胃之下口相接，其下口在阑门处与大肠之上口相连。
A、小肠
B、横结肠
C、大肠
D、十二指肠
