Nobody could understand her though she tried to her idea by using the simplest English, because they are foreigners.
We can’t ____ the punctual arrival of trains in foggy weather.
This test ____ a number of multiple-choice questions.
He soon made _____ clear why he had asked for a conference.
There is no doubt _____ he will finish the task in time.
My brother is honest. He _____ such a thing.