to invite 邀请

(a)  

to welcome 迎接到来

(a)  

look clean and beautiful 看着来很干净又美丽

(a)  

group studying 一起温习

(a)  

make a timetable 时间表

(a)  

time management 时间管理

(a)  

hardworking 努力

(a)  

to understand 了解

(a)  

at the same time/while 同时 (two people doing two different actions)

(a)