I don’t believe these people have achieved success __________. They must have put much effort into their work.
| A．by coincidence | B．as usual | C．in particular | D．on purpose |
Do you think exercise can keep us ________？
| A．well | B．good | C．fit | D．fine |
The teacher asked us ________ in our reports before class.
| A．hand | B．to hands | C．handed | D．to hand |
Tom was the first ________ he was wrong.
| A．admit | B．to admit | C．of admitting | D．for admitting[ |
—Send me an email when you are free, will you?
—________.
| A．I must | B．I will | C．I can | D．I should |
Many students are ________ chatting online, which wastes them plenty of time.
| A．crazy about | B．connected with | C．worried about | D．anxious about |