Up to now, only 10% of the scheduled tests have been undertaken.
举一反三
- Not only the USA and Russia but also China _______ manned satellites to circle the earth. A: has sent up B: has been sent up C: have sent up D: have been sent up
- Up till now at least 7000 patients have been __________(hospital) for suspected 2019-nCoV disease.
- Extensive tests have been ____ on the patient.
- What a pity! If only they ______ here now, we would be able to celebrate their wedding anniversary. A: are B: were C: have been D: had been
- ____I have been only at college for two days, I have learnt a lot of new things. A: Now that B: That C: Even though D: If