He commanded that the student _____the classroom before he returned.A didn't leave B wouldn't leave C not leave D can’t leave
As we know, the coming of radio in this century made ocean sailing much ______.
The new law has come into _____; surely it will have _____on industry of the country.
______the house was started before she went to Africa and now it is still under construction.
They have made medicine from a new plant _____a cure for fever.
–Does it matter if I give it up this time? -- It ____if you do. You won’t have ______chance.