A.has learnt
B.would learn
C.will have learnt
D.will learn

A.had cycled
B.have cycled
C.cycled
D.was cycling

A.If Mina hadn’t lost the ticket, she would go to the concert.
B.Hadn’t Mina lost the ticket, she would have gone to the concert.
C.If Mina had lost the ticket, she would have gone to the concert.
D.Had Mina not lost the ticket, she would have gone to the concert.

A.He can't have finished his homework last night because he spent all night playing computer game.
B.He needn’t have finished his homework last night because he spent all night playing computer game.
C.He mustn’t have finished his homework last night because he spent all night playing computer game.
D.He shouldn’t have finished his homework last night because he spent all night playing computer game.

A.I didn’t see my cousin ten years ago.
B.My cousin arrived ten years ago.
C.I haven’t seen my cousin for ten years.
D.I see my cousin once every ten years.

A.Hardly had we known about her artistic talent when she gave a great performance at the festival.
B.Although she gave a great performance at the festival, now we still don't know she has artistic talent.
C.Amazing as her artistic talent is, we don't know about her great performance at the festival.
D.But for her great performance at the festival, we wouldn’t know about her artistic talent now.

A.Having saved a lot of money, he travelled to Australia.
B.Travelling to Australia needs a lot of money,
C.To save a lot of money, he travelled to Australia.
D.Travelling to Australia costs him a lot of money.

A.If I come home late, you’d better take the keys.
B.You’d better take the keys in case I come home late.
C.You'd better take the keys as I possibly come home late.
D.I'll probably come home late so that you’d better take the keys.

A.The
B.he tried
C.worst
D.before

A.The
B.he tried
C.worst
D.before