Ella improved her way of study. _________, shehas made great progress.

The old man with his wife often_________ the children in the park， thinking of their own grandchildren in the city.

Knowledgeable as he is, the expert was unwilling to offer advice to ______ he thought was not qualified.

Healthy food should _____some fat, some fibre, a little salt and so on.

The bride and groom gave _____ attended their wedding some gifts to share their happiness.