1 (+) it is raining now
(-) it isn't raining now
(?) Is it raining now?
2. (+)the teacher was wearing brown shoes today
(-)the teacher wasn't wearing brown shoes today
(?)Was the teacher wearing brown shoes today ?
3. (+)my granddad is driving his car to the supermarket
(-)my granddad isn't driving his car to the supermarket
(?) Is your granddad driving his car to the supermarket?
4. ( + ) they are revising for their geography exam
(-)they aren't revising for their geography exam
(?) Are they revising for their geography exam ?
5. ( +) he is speaking Chinese now
(-)he isn't speaking chinese now
(?)Is he speaking Chinese now?