.Nobody but doctors or nurses and those ________ by Dr. Hu ________ to enter the patient's room.
—Why didn’t you buy the calculator? —I ______, but Mother ______ allow me.
—Tom, you didn’t come to the party last night? —I ______, but I suddenly remembered I had homework to do.
As your spoken English gets better, so_____ your written English.
The boy insisted that he the money and he at once.
With more forests being destroyed, huge quantities of good earth _____ each year.