The pilot asked all the passengers on board to remain ________ as the plane was making a landing．

A．seat

B．seating

C．seated

D．to be seating

Most of the artists ________ to the party were from South Africa．

A．invited

B．to invite

C．being invited

D．had been invited

The disc, digitally ________ in the studio, sounded fantastic at the party that night．

A．recorded

B．recording

C．to be recorded

D．having recorded

－I'm very ________ with my own cooking．It looks nice and smells delicious．

－Mm, it does have ________ smell．

A．pleasant; pleased

B．pleased; pleased

C．pleasant; pleasant

D．pleased; pleasant

－How do you deal with the disagreement between the company and the customers?

－The key ________ the problem is to meet the demand ________ by the customers．

A．to solving; making

B．to solving; made

C．to solve; making

D．to solve; made

Sarah, hurry up．I'm afraid you can't have time to ________ before the party．

A．get changed

B．get change

C．get changing

D．get to change

The Olympic Games, ________ in 776 B．C．, did not include women players until 1912．

A．first playing

B．to be first played

C．first played

D．to be first playing

Prices of daily goods ________ through a computer can be lower than store prices．

A．are bought

B．bought

C．been bought

D．buying

After several years'practice, she has become an ________ teacher now．

A．experience

B．experienced

C．experiencing

D．to experience

The problem just ________ is an important one．

A．to be referred to

B．referred to

C．referring to

D．referred