—Shall we have a smoke here?—No, we _____ because this is gas station and the worker is carrying some petrol.
Little Jim sat under the tree, ___ about that maths problem.
More than 70 percent of the playground in our school __ covered by water now.
Shanghai is __ the east of Nanjing.
The Great Wall took _ a new look after the People\s Republic of China was founded.
Tom is not used to __ in public.