When it’s muddy, you ______ walk carefully (must / mustn’t)
must
If you don’t dry your clothes after the rain, they ______ wet (stay / stays / staying)
stay
If you see lightning, you ______ stand under a tree (must / mustn’t)
mustn’t
You ______ drink clean water every day (must / mustn’t)
must
If the tap is broken, water ______ out (leaks / leak / leaking)
leaks
If you step in a puddle, your feet ______ wet (get / stays / are)
get
If you pour water into a hole, it ______ up (fill / fills / filling)
fills
If you drink water from a puddle, you ______ sick (get / gets / got)
get
If the tap is open, water ______ out (flow / flows / flowing)
flows
If it’s raining, we ______ take an umbrella (must / mustn’t)
must
You ______ fill a bucket if you want to carry water (must / mustn’t)
must
If you don’t wear a raincoat, your clothes ______ wet (get / gets / got)
get
You ______ wear wellies if it is very muddy (must / mustn’t)
must
When the rain stops, we ______ puddles on the ground (see / sees / seeing)
see
When lightning appears, you ______ stay inside (must / mustn’t)
must
If you water plants, they ______ better (grow / grows / grew)
grow
If the sun comes out after the rain, you ______ a rainbow (see / sees / seeing)
see
When the ground is wet, it ______ slippery (is / are / be)
is
You ______ leave the tap running when you finish using it (must / mustn’t)
mustn’t
You ______ waste water when you brush your teeth (must / mustn’t)
mustn’t
When it is rainy, the sky ______ grey (is / are / be)
is
If a storm is coming, you ______ go outside (must / mustn’t)
mustn’t
If it is rainy, we ______ take an umbrella (must / mustn’t)
must
If you don’t wear wellies, your feet ______ wet and muddy (get / gets / got)
get