TE 1 Units 11-12 V+G

Water falls onto the blades of the turbine. This makes the turbine ________________.

• rotate

• rotating

• rotated

• rotates

When you close the stop valve, it prevents the water ________________.

• from flowing

• to flow

• flowing

• isn't flowing

Open the door and allow the smoke ___________________________ from the room.

• to escape

• will escape

• from escaping

• escape

The security man does not let anyone __________________ the factory after dark.

• enter

• to enter

• entering

• enters

When __________ your damaged radio to the repair shop?

• did you take

• you take

• have you taken

• you took

I’m pressing the brake pedal hard, but the car __________ stopping.

• isn't

• wasn't

• aren't

• don't

How fast __________ the blades of the helicopter rotate?

• do

• does

• are

• have

I’m sorry. __________ installed the new air conditioner yet.

• I haven't

• I didn't

• I don't

• I'm not

If the wind is more than 90 km/h, the controller causes the turbine __________.

• to switch off

• switching off

• switch off

• switches off

__________ you buy the new safety equipment yesterday or last week?

• Did

• Doing

• Have

• Does