Many people agree that __________ knowledge of English is a must in _____ international trade today.
A.the, an | B.a, / | C.the, the | D./, the |
I delayed _______ your letter because I had been away for a week.
A.answer | B.answering | C.writing | D.to post |
---Will the Smiths go abroad this summer?
---No, they finally decided _______.
A.to | B.not going | C.not to | D.not to be going |
The patient was warned _______oily food after the operation.
A.to eat not | B.eating not | C.not to eat | D.not eating |
Charles Babbage is generally considered _______the first computer.
A.to invent | B.inventing | C.to have invented | D.having invented |
The matter had better _______ as it is.
A.leave | B.being left | C.leaving | D.be left |