Shall I inform him of the change of the schedule right now?— I am afraid you ________, in case he comes late for the meeting. [ ]

We should consider the students’ request_____ the school library provide more books on popular science.

The young lady __________ we met yesterday is our new math teacher.

Can I come this evening or tomorrowmorning—— ______ OK I’m free today andtomorrow

The mobile phone has influenced people’s life a lot since it________.