Some researchers believe that there is no doubt ______a cure for AIDS will be found.

Marry was holidaying with her family in a wildlife park______she was bitten on the leg by a lion.

Do you know _______ the girl in red is?—I’m not sure. Maybe a doctor.

What is it about him _____you dislike him .—-I don’t know . But I don’t like him from the start .

__________is it from your school to the zoo? -It’s about six miles.[ ]