单选题
The director of the research institute came in person to ______ that everything was all right.
A、
make out
B、
make sure
C、
make clear
D、
make up
【正确答案】
B
【答案解析】
make out了解，填写；make sure确定；make clear解释；make up弥补，化妆。
提交答案
关闭