【推荐2】—The light in Mr. Li’s office is on.
—He is still working, __________he doesn’t feel well.

A．because

B．until

C．although

D．while

【推荐3】You'd better not waste your time. ________, you should make good use of every second and do something meaningful.

A．Instead

B．Although

C．Suddenly

D．But

【推荐1】_____it’s late at night,______my father is still working.

A．Though;but

B．Because;/

C．Though;/

D．So; /

【推荐2】      the old man lived alone, he didn’t feel lonely.

A．Because

B．Though

C．So

D．Until

【推荐3】I enjoy learning English ________ it takes me a lot of time.

A．unless

B．although

C．because

D．for

【推荐1】Dr. Zhong Nanshan still works hard ________ he is 84 years old.

A．though

B．if

C．so

D．because

【推荐2】President Xi encourages all Chinese people to plant more trees ________ our country can be greener.

A．so that

B．as long as

C．even though

D．in order to

【推荐3】— It’s reported that the plastic pollution is harming the ocean.
— I saw the report in the newspaper at breakfast. It will be worse _________ stronger laws are made.

A．since

B．after

C．until

D．unless