Was, were, wasn't, weren't

+ She ... at the cinema last night.

(-) They ... at home last week.

(?) ... you at the cinema two days ago?

(+) Nelly ... at the camp last month.

(-) Emily ... at the theatre yesterday.

(?) ... Linda at school last week?

(+) They ... in the village last weekend.

(+) It ... cold yesterday.

(-) The test ... difficult.

(?) ... they in London three month ago?

(-) We ... at the camp last summer.

(+) I and my friends ... at the river two days ago.