Look! ______students are doing sports on the playground.

The population of many Chinese cities has _________ doubled in the past 30 years

You’d better write down her phone number before you _______ it

The number of people who _______ invited to the meeting _____ fifty, but a number of them _____ absent for different reasons.

Cathy went to the hospital aloneIf she had told me about it, I _____ with her