How long do you think it will be _______ scientists succeed in providing a cure for cancer?

Haven’t I told you that you should get home earlier?—Yes, but I __________ home earlier than I usually do.

Ithink drinking milk every morningis good _____ our health. ―Yes. I agree ________ you.[ ]

_____ doesittakeyoutofinishyourhomeworkeveryday?—Aboutanhour. [ ]

My mother didn’t expect ______ such a lovely present from me!