The world’s population is getting larger and larger, so scientists will have to ______ new ways to solve food problem.
| A．catch up with | B．keep up with | C．come up with | D．make up with |
I hope you _____ to my office as soon as possible.
| A．to come | B．come | C．came | D．will come |
A group of middle school students spent two weeks _____ the jungle.
| A．trekking through | B．trekking across | C．to trek across | D．to trek through |
Please ask the headmaster to decide .
| A．to go there with whom | B．whom to go there |
| C．whom to go there with | D．with whom to |
I want to know if your sister will go to the movie.
— If your sister , so .
| A．does; does she | B．will; will she | C．does; will she | D．will; does she |
— Bill, is the pink umbrella Anna’s?
— No, it be hers. Hers is purple.
| A．can | B．may not | C．would | D．can’t |