Beijing ________ a lot over the years. Now it has become one of the biggest
______ in the world.
| A.changes; cities | B.changed; city |
| C.has changed; cities | D.changed; cities |
We _____ more than 1,200 English words already, do you know?
| A.learn | B.will learn | C.have learned | D.are learning |
I went to Sanya with my family this summer and all of us _____ a good trip.
| A.have | B.are having | C.will have | D.had |
—Our City Park in 1998.
—Wow, it has the same age as me.
| A.built | B.is built | C.has built | D.was built |
Mr Chen told us that three fourths of the earth ________covered with water.
| A.were | B.is | C.was | D.are |
The director wants to make sure no one will solve the mystery until it ________ at the end of the horror film.
| A.is explained | B.will be explained | C.explains | D.has explained |
Chen Bing went to Australia in 2010. He ___________ there for 3 years.
| A.lives | B.lived | C.is living | D.has lived |
—Have you ever been to Shanghai, Mary?
—Yes. I ___________ there three times.
| A.have gone | B.have been | C.went | D.was |
Great changes _____ in my hometown since 1980.
| A.have been taken place | B.took place |
| C.have taken place | D.were taken place |