I’ll come to pay a visit to you if _______ this weekend.

Oh! It’s 9 o’clock! I know _______ is no possibility ________ I can catch up with the train.

The city is built _____ two rivers come together.

The two international companies reached anagreement, which was based on their talks.

________unpleasant weather! Mysister and I have to stay at home instead of going camping.