Choose the right description of the underlined part in each sentence．

(选出对句中画线部分描述正确的选项。)

Have you thought of giving up after the accident?

A．介词

B．副词

C．连词

Choose the right description of the underlined part in each sentence．

(选出对句中画线部分描述正确的选项。)

Unfortunately, disaster came in 1995 when he fell from his horse and broke his back．

A．定语从句

B．宾语从句

C．状语从句

He is the only one of the students who ________ a winner of scholarship for three years．

A．is

B．are

C．have been

D．has been

Sales of CDs have greatly increased since the early 1990s, when people ________ to enjoy the advantages of this new technology．

A．begin

B．began

C．have begun

D．had begun

The first use of atomic weapons was in 1945, and their power ________ increased enormously ever since．

A．is

B．was

C．has been

D．had been

My mind wasn’t on what he was saying so I’m afraid I ________ half of it．

A．was missing

B．had missed

C．will miss

D．missed

－The window is dirty．

－I know．It ________ for weeks．

A．hasn’t cleaned

B．didn’t clean

C．wasn’t cleaned

D．hasn’t been cleaned

－I hear Jane has gone to the Holy Island for her holiday．

－Oh, how nice!Do you know when she ________?

A．was leaving

B．had left

C．has left

D．left

Old McDonald gave up smoking for a while, but soon ________ to his old ways．

A．returned

B．returns

C．was returning

D．had returned

－You haven’t said a word about my new coat, Brenda．Do you like it?

－I’m sorry I ________ anything about it sooner．I certainly think it’s pretty on you．

A．wasn’t saying

B．don’t say

C．won’t say

D．didn’t say