.—Do you think we should accept that offer? —Yes,we should,for we such bad luck up till now,and time out.
.In this experiment, they are wakened several times during the night and asked to report what they__________.
--I hear Michael is in hospital. ----Oh, really? I____know. I______go and visit him.
Children find_____difficult to sit for hours with little to do while flying.
---Must I see a doctor right now? ----No, you______see a doctor for the time being.
This work, when we find it and do it----_________only as a hobby at first---is a key to our true happiness.