问题
Where have you _________ all day? —I came back at noon and I _________ in this room ever since.
A:gone; had been
B:gone; was
C:been; have been
D:been; am
B:gone; was
C:been; have been
D:been; am
正确答案是：
同类题型
I need more physical and mental strength. Could you give me some ______?
Copy the expression ___________, please, without any changes.
Can you____ a tent by yourself ? —Sorry . It’s a little difficult for me.
_______you and Mike brothers?—–No, I_______his cousin.
Don’t talk with Mr. Baker. — I agree with you. ______ you say, he always disagrees.