___ is important for us___ English well.
| A．That; to learn | B．This; learning |
| C．It; learning | D．It; to learn |
–---What do you think of what she did?
----What she did still _________ us feel very sad.
A. makeB. makes C. is making
----Must I leave now?
----No, you _________. There is still some time left.
A. mustn’tB. needn’t toC. don’t have to
---- How long __________ the bike? ---- For 2 years.
A. have you bought B. have you had C. did you have
They arrived _____ London_____ a cold winter night.
A. in, onB. at, on C. at, in
He is ________ to move the heavy box.
A. too strongB. strong enoughC. so strong