The old man is too tired _________ go any further.
| A．enough | B．can’t | C．to | D．so |
Peter has taught ______ English for two years.
| A．him | B．his | C．himself | D．he |
It’s a fine day, ______ it?
| A．is | B．does | C．doesn’t | D．isn’t |
Dick got up into a tree ______ he saw the bear.
| A．while | B．as soon as | C．until | D．if |
— His father didn’t go to work today, did he?
— ______.
| A．No, he didn’t | B．Yes, he didn’t | C．No, he did | D．Yes, he was |
— How long have you studied English?
— ______.
| A．For 5 years | B．5 years ago | C．Since 5 years | D．5 years before |