My teacher speaks English well indeed, but of course not __ a native speaker.
He _____ articles for our wall-newspaper these three years, and he _____ about forty articles.
— Look at the black clouds. It ____ soon.— Sure. If only we ____ out.
The children ____ very quiet;I wonder what they ____ up to.
Jim talked for about half an hour yesterday. Never ____ him talk so much.
—____ Betty this morning?— Not yet, but she is sure to be here before noon.