We do not know how astronauts can ________ when they spend months in space without the protection of the atmosphere.
____________snacks and drinks, but they also brought cards for entertainment when they had a picnic in forest.
The teacher, with 6 girls and 8 boys of her class,___________visiting a museum when the earthquake struck.
—I would never ever come to this restaurant again. The food is terrible! —________________.
—David has made great progress recently. —_______, and __________.
The number of people invited _________ fifty, but a number of them __________ absent for different reasons.