1. My father has worked here ---- 2015.



for

in

yet

since

ago





2. While he ---- football, John ---- his leg.



play / break

is playing/broke

played / was breaking

was playing / broke

broke/was playing





3. Children ---- play alone in the park because there are a lot of bad guys around.



don’t have to

must

shouldn’t

have to

to have





4. Everybody is getting impatient because the concert hasn’t started ----



just

already

still

yet

ago

​