If you ________ go, at least wait until the storm is over.
A.can |
B.may |
C.must |
D.will |
We were told that we should follow the main road ___ we reached the central railway station.
A.whenever | B.until | C.while | D.wherever |
Scientists say it may be five or six years ___ it is possible to test this medicine on human patients.
A.since | B.after | C.before | D.when |
Tom’s and Joan’s ____ came to London last week.
A.father-in-law | B.fathers-in-law | C.fathers-in-laws | D.father-in-laws |
You can hardly imagine the difficulty the woman had _____ her children.
A.brought up | B.to bring up | C.bringing up | D.to have brought up |
No one ____ this building without the permission of the police.
A.is leaving | B.is to leave | C.has left | D.will be leaving |