__________ the convenience of digital payment, many senior citizens started to use smart phones.

— You look upset. What ’s the matter.

— I had my proposal _______ again.

We’d better discuss everything _______ before we work out the plan.

Unlike traditional gyms, app-backed gyms offer people ___________ options to exercise.

This is the _____ piano on which the composer created some of his greatest works.

What a pity! You missed the sightseeing, or we _________a good time together.

Motorists _____ of speeding may be banned from driving for a year.

A few months after he had arrived in China, Mr. Smith ___________ in love with the people and culture there.

More wind power stations will ____________ to meet the demand for clean energy.

Favorable policies are ___________ to encourage employees' professional development.

The doctor shares his phone number with the patients __________ they need medical assistance.

According to the psychoanalyst Sigmund Freud, wisdom comes from the_____ of maturity.

Recently a survey _______ prices of the same goods in two different supermarkets has caused heated debate among citizens.

-----Tommy is planning to buy a car.

----I know .By next month ,he__enough for a used one

---I left my handbag on the train, but luckily someone gave it to a railway official.

---How unbelievable to get it back! I mean, someone ______ it.

Scientists have obtained more evidence ___________ plastic is finding its way into the human body.

Will all those _____ the proposal raise their hands?

The number of tickets _____ will be determined by the size of the stadium.

An early typewriter produced letters quickly and neatly; the typist, _____couldn't see his work on his machine.

He was not _____ to the club because he wasn't a member.