I stayed in a hotel while________

A．in New York

B．I am in New York

C．he was in New York

D．I stay in New York

Either Joe or Rose was the last to leave the lab yesterday. But I’m not sure ________.

A．it

B．whom

C．who

D．that

________ with so many books, the students didn’t know what to do.

A．Loaded

B．Being loaded

C．Loading

D．Having loaded

Please come in two ________ , not all together.

A．at times

B．at the time

C．at one time

D．at a time

—What’s the matter with John?

—He didn’t pass the test but he still ________.

A．hopes so

B．hopes to

C．hopes it

D．hopes that

While building a tunnel through the mountain, ________

A．an underground lake was discovered

B．there was an underground lake discovered

C．a lake was discovered underground

D．the workers discovered an underground lake

—You should have thanked her before you left.

—I meant  ________, but when I was leaving I couldn’t find her anywhere.

A．to do

B．to

C．doing

D．doing so

________ in this university for four years, he got a bachelor’s degree.

A．To be educated

B．Educating

C．Educated

D．Being educated

When I came back, I noticed that he was still sitting in the office. He seemed  ________ for someone.

A．waited

B．to have waited

C．to be waiting

D．to wait

________ on the plane at a height of 3,000 meters above the ground, the big river looks like a belt.

A．Seen

B．Seeing

C．To see

D．See