He has much money at the beginning of every month, but by the end of it he_____ have little left.
| A．can | B．will | C．must | D．should |
Tom in the library every night over the last three months.
| A．works | B．worked |
| C．has been working | D．had been working |
My English teacher, as well as her students, ____ to perform at the party last night.
| A．were invited | B．was invited |
| C．have been invited | D．has been invited |
__________ something unexpected happens，I will meet you at the school gate tomorrow
morning.
| A．When | B．Unless | C．Since | D．If |
Career advisors often suggest people find a job _______ they can get a sense of achievement.
| A．that | B．what | C．where | D．which |
Washing hands thoroughly is one of the effective ways to avoid ________ by virus.
| A．being infected | B．infecting |
| C．to be infected | D．to infect |