There is no doubt he’s an honest boy, so there is no doubt his honesty.
| A．whether; for |
| B．that; of |
| C．what; about |
| D．why; of |
Mary as well as her elder sister who______ Chinese at university ______ gone to China for holiday.
| A．studies; has | B．study; have | C．studies; have | D．study; has |
31. We______ on the project for three hours. Let’s have a rest.
| A．are working | B．have been working | C．worked | D．had worked |
My grandparents asked me to go and see them whenever______.
| A．I am convenient | B．I will be convenient |
| C．it is convenient | D．it will be convenient |
. ______some people dislike may be others’ favorite.
| A．Whether | B．What | C．That | D．How |
Studies show that office workers are more ______to suffer from backache because they always sit before computer screens for long hours.
| A．surely | B．likely | C．probable | D．possible |