_____ in a heavy snow, he didn’t get there in time.
| A．Catching | B．Catch |
| C．Caught | D．To catch |
--Would you mind giving me advice on how to improve my record?
--If you make _______ most of your potential, there will be ________ rise in your achievement.
| A．不填；不填 | B．the; a |
| C．不填; a | D．the; 不填 |
— ______, but are you forgetting something?
— Oh, my God. We haven’t fixed our next meeting yet.
| A．I’m sure | B．I’m afraid so |
| C．Take care | D．Excuse me |
______ food is hard to find, few birds remain throughout the year.
| A．Where | B．Although | C．Unless | D．When |
I wish I could go camping with you next weekend; it sounds fun. ______, I’ll have to work.
| A．Carelessly | B．Unfortunately |
| C．Hopefully | D．Naturally |
Happy times usually pass quickly without ______.
| A．noticing | B．being noticed |
| C．having noticed | D．to be noticed |