Fill in each blanks with "require", "wrap", "in order" ,"make certain","present","introduction","modest","be careful of" in the word's proper form.
查看答案
Fill in each blanks with "turn", "stand", "grow" or "engage" in the word's proper form.
Fill in each blanks with the proper form of the word given in brackets.
I have the doctor, but he isn't here yet.
A. sent out
B. sent up
C. sent to
D. sent for
The mother has three sons. of them are teachers.
A. Every
B. All
C. Each
D. Both
微信支付 
支付宝支付