More wind power stations will ____________ to meet the demand for clean energy.

Theyaretryingtomakesurethat5Gterminals_________by2022fortheBeijingWinerOlympics.

Teachershavetoconstantlyupdatetheirknowledgeinordertomaintaintheirprofessional___.

Heisaveryhonestofficialandnever_____anygiftsfromthepeoplewhosoughthishelp.

An early typewriter produced letters quickly and neatly; the typist, _____couldn't see his work on his machine.