Believe it or (a)   , they have broken up!

(a)   you can imagine, she was over the moon!

(a)   fact, it was not easy at all! (= Actually)

Well, I must (a)   that I'm not particularly excited about this idea 'cos I've been incredibly busy. (= say with all honesty, similar to confess; the first letter is "a").

Well, in the end I bought the sweater, (a)   though not exactly what I originally wanted. (= although)

Fortunately, (a)   the end everything turned out alright.

Are you coming (a)   the beginning of March then? (= preposition used with the beginning of a time period such)

He seemed excited about the new job. (a)   , recently he has been complaining about it, so I'm afraid he has changed his mind. (= Nevertheless; but)

(a)   , we managed to catch the plane. However, we had to pay a huge excess baggage charge. (= Luckily)

Wow! That's smashing! (a)   on passing your school-leaving exam then! You must be exhausted, though. (short form is "contrats")

It was great to hear that you like your new school. I'm so (a)   to hear that! (= delighted)