We will be able to go out tomorrow evening

• if the babysitter will be available.

• so long as the babysitter is available.

• unless the babysitter is available.

• provided that babysitter is available

When the weather is really hot,

• I get a lot of headaches.

• I would get a lot of headaches.

Plants die

• if they won't get enough water

• unless they don't get enough water

• if they don't get enough water

• unless they got enough water

If you don't charge your mobile phone,

• it ran out of power

• it would run out of power

• it runs out of power

• power ran out

If he learned the new words,

• he can get a good mark in the test.

• he could have got a good mark in the test.

• he could get a good mark in the test.

If we had seen the film,

• we will not buy the DVD.

• we would not have bought the DVD.

• we would not buy the DVD.

If I were you,

• I would not play hockey.

• I will not play hockey.

• I would not have played hockey.

. 

If the weather had been better, we _______________ (to come) by bike.

• would have come

• would come

• would had come

• had come

I'd have sent them the task, if they (be) more reliable. However, I don't think I can trust them.

• were

• are

• will be

• would be

You (not / be) so tired now if you had gone to bed earlier.

• weren't

• wouldn't be

• hadn't been

• won't be