______ almost all our time to our schoolwork in the past three months, we have almost no time for fun and play．
| A．Having devoted | B．Devoted | C．To devote | D．To have been devoted |
相关试题
I regret ___ harder in the past two years.
| A．not having studied | B．having studied | C．having not studied | D．not being studied |
Tom’t uncle must be an engineer, ____?
| A．mustn’t he | B．can't he | C．isn’t he | D．needn’t he |
I'm feeling blue, for they ate all the cake and _________left.
| A．none | B．everything | C．everyone | D．no one |
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