Do you know the professor in home we stayed?
A.which | B.his | C.whose | D.whom |
I couldn’t do my homework with all that noise ________.
A.going on | B.goes on | C.went on | D.to go on |
Not only ____________ vital for reducing fever and helping stop pain, but there are also other things that aspirin can help with.
A.has aspirin proved | B.did aspirin prove |
C.aspirin proved | D.had aspirin proved |
It was not until 1938 _________ the first colour TV programme was broadcast.
A.which | B.that | C.when | D.on which |
You can borrow my car ________ you promise not to drive too fast.
A.unless | B.even if | C.in case | D.as long as |
We were told not to touch the equipment in the laboratory unless ________.
A.allowed to do | B.allowing to do | C.allowed to | D.allowing to |