---- Do you know our town at all?
-----No, this ________ the first time I _________ here.
| A．was; has come | B．is; come | C．is; had come | D．is; have come |
----Why did you just sit and watch？
-----You _______ me.
| A．could help | B．should help |
| C．could have helped | D．must have helped |
----I called you yesterday. A woman answered, but I didn’t recognize her voice.
----Oh, it _____ my aunt Jean.
| A．must be | B．must have been |
| C．might be | D．can have been |
---I called you yesterday. A woman answered, but I didn’t recognize her voice.
----Oh, it _____ my aunt Jean.
| A．must be | B．must have been |
| C．might be | D．can have been |
It’s a very kind offer, but I really _____ accept it.
| A．mustn’t | B．needn’t | C．can’t | D．don’t |
This cake is very sweet. You _________ a lot of sugar in it.
| A．should put | B．could have put | C．might put | D．must have put |