Now a lot of new technology can _____ problems in industry.
| A．be applied to solve | B．be applied to solving |
| C．apply to solve | D．apply to solving |
Allthatcanbeeaten____eatenup.
| A．arebeing | B．hasbeen | C．hadbeen | D．havebeen |
Someperson ____callingforyouatthegate.
| A．are | B．is | C．isbeing | D．willbe |
Oneachsideofthestreet ____alotoftrees.
| A．stands | B．grow | C．isstanding | D．aregrown |
Thesheetsforyourbed____washing.
| A．needs | B．areneeding | C．want | D．arewanting |
OneofMarx’sworks _____writteninEnglishinthe1860s.
| A．was | B．were | C．wouldbe | D．are |