—I hear you have an experience in the Royal Air Force. Is that ture?—Yes. I ______ in the Royal Air Force for six years. A. served B had served C joined D have joined
The problem just________to be discussed at the class meeting tomorrow.
Your mother _______, however, say that to us that day.
Kate’s little brother kicked the ball to the river; she took great trouble to get in _______the river.
My brother was still studying _______into the night while I was _______asleep.
It was she that ________a sharp whistle, which makes ________possible for us to catch the thief.