passive voice

The machine _______ on by pressing this switch.

• can turn

• can be turned

• must turn

• should be turning

The children were frightening by the thunder and lightning.

• The

• frightening

• thunder

• lightning

May I have a _______ about the trip to Cuc Phuong National park next week?

• suggest

• Suggestion

• suggested

Protecting natural wonders brings both social and ________ benefits.

• finance

• financial

• financier

Tomatoes__________ before they are completely ripe.

• can be picked

• can pick

• needn't pick

• should be picking

It _________ that 70 tons of dead fish washed ashore along more than 200 kilometres of Viet Nam's central coastline in early April.

• was reported

• had reported

• had been reported

• were reported

It is important that she ______ take her medicine twice a day.

• remember

• remembering

• to remember

• remembered

I suggest that John ________ the directions carefully before assembling the bicycle. He doesn't want the wheels to fall off while he is riding down a hill.

• reading

• to read

• read

• have read

It's vital that United States _________ on improving its public education system. What we do now will affect our country for generations to come.

• focuses

• focus

• focusing

• to focus

He will die if nobody takes him to hospital.

• He will die if anyone takes him to hospital

• he will die unless someone takes him to hospital

• he will die if he is taken to hospital

• He won't die unless someone takes him to hospital