Helen _______her keys in the office so she had to wait until her husband ___home.
| A．has left; comes | B．left, had come | C．had left; came | D．had left; would come |
----Have you ever been to Shanghai? ----Yes. I _____ there with my father last year.
| A．went | B．have been |
| C．have gone | D．has been |
---- Do you know the _____ of the stone?
---- Yes. It _____ about 200 kilos.
| A．weight; weighs | B．weights; weighs | C．weigh; weighs | D．weigh; weights |
For most people, it’s very difficult to _____ air on the top of Qomolangma.
| A．take out | B．take off |
| C．take up | D．take in |
---- Do his pets ______ the cat?
----- Yes. He has three pet cats _____ this one.
| A．include; include | B．include; including |
| C．including; including | D．including; include |
_______ is the population of the city?
| A．What | B．How many |
| C．How much | D．How big |