Doctor Nathan is said to have been ________ to researching i
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Doctor Nathan is said to have been ________ to researching into wild animals in Africa for more than ten years. |
[ ] |
A. absorbed B. devoted C. concentrated D. engaged |
B
He is said to have been there
9、This problem is said ________ three times.A.to have been t
I have never been to shanghai.________?
AIDS is said to have been the biggest
有没有is said to have been doing的结构
"I Have been to Beijing"Lucy said同义句
A:I have never been to Pairs.________ it _______
i have just been to the doctor's to have a physical examinat
have u been (to) a doctor
I have been to.
I have been to
One morning grandpa said “I have to go to the doctor after b