This cake is very sweet. You _____ a lot of sugar in it. [ ]

You can’t imagine the trouble we had _____ the drowning child. [ ]

For theme parks, ______ is the key to _____ visitors, which contributes to the success of running them. [ ]

I sent the letter early that morning _______ she got it that afternoon

The teacher asked us to stop______becauseshe wanted to tell us something