Fill in the gaps with the correct form of the verbs in brackets.
1 london is the capital of the uk. it is worth (to visit).
2 a man (to launch) into space for the first time in 1961.
3 i (to live) in paris for three years.
4 mary (to do) her homework. you may check it.
5 i (to go) to the crimea last summer. it was great!
6 my mother (to cook) supper by 6 o'clock yesterday.
7 the new rules (to explain) to the students tomorrow.
8 listen! somebody (to play) the piano in the next room.
9 we (to work) without a break since 8 o'clock in the morning.
10 nick is an artist. he (to draw) these beautiful landscapes last week.
