—I think using Wechat every night is a waste of time.
—Yes. In fact, there are ______ meaningful things to do.
| A．less | B．more |
| C．the least | D．the most |
Could you please translate this material _____ Spanish？
A. in B. with C. into C. on
I couldn’t ____. The line was busy.
| A．go by | B．go ground | C．get in | D．get through |
The conference has been held to discuss the effect of tourism(旅游业) ___ the wildlife in the area.
| A．in | B．on | C．at | D．with |
Sandra was a student ____ the age of 21.
| A．at | B．in | C．on | D．for |
Scientists say they are beginning to _____ in the fight against cancer.
| A．break in | B．break out | C．break down | D．break through |