________ at the door before you enter my room, please.
#66075
A
Knock
B
Knocking
C
Knocked
D
To knock
推荐题目
Tony, ________, or you will get heavier.
#59402
A
doesn't play sports any more
B
doesn't eat so much meat
C
don't play sports any more
D
don't eat so much meat
________ it is to have a cold drink on such a hot day!
#65948
A
What a fun
B
How fun
C
How a fun
D
What fun
______ at the door before entering please. 
#66016
A
Knocked
B
Knock
C
Knocking
D
To knock
We haven’t seen each other for many months.__! 
#66281
A
What I missed you
B
What did I miss you
C
How I missed you
D
How did I miss you