Fill in the gaps with the correct form of the verbs in brackets.

1) It has been snowing all day long. (snow) 2) Have you ever seen a shooting star? (you/ever/see) 3) Helen has been learning Maths and Literature all this month. (learn) 4) He has been working at the bank for two years. (work) 5) Have you read this book? (you/read) 6) We can’t enter, he has forgotten the key. (forget) 7) Tom has been watching TV all this day. (watch) 8) We are very tired. We have been walking in the mountains. (walk) 9) I have never seen a lion. (never/see) 10) John has been preparing for the exams since morning. (prepare) 11) My brother has been riding a bicycle for two hours. (ride)