—Can you keep an eye on my bag, Mary? I just want to use the bathroom.
—___________. It will be safe with me.
| A．I don’t think so | B．Forget it | C．Go ahead | D．You’re welcome |
It is required that each of the students chosen _____ good preparations ahead of time.
| A．has to make | B．will make | C．should make | D．must make |
My hard work ____. My cartoon came out in the form of a real book, beautifully printed.
| A．paid off | B．paid for | C．paid back | D．paid out |
— I've never found a better job.
—____.
| A．I don't think so | B．Too bad | C．Congratulations | D．Don't worry |
It requires ____ your willingness to do the job. It also requires a lot of mental effort.
| A．less than | B．more than | C．fewer than | D．nothing than |
When ____ help, one says "Thank you" while when _____ help, one asks "Can I help you?"
| A．ffered; offered | B．ffering; offered | C．offering; offering | D．offered; offering |