The wonderful time they had been looking forward ____ at last.
A.to arrive | B.to arrived | C.to arriving | D.should arrive |
Some researchers believe that there is no doubt ______a cure for AIDS will be found.
A.which | B.whether | C.that | D.what |
He was about to tell me the secret ______ someone patted him on the shoulder.
A.as | B.while | C.when | D.until |
______ you’re tried it, you can’t imagine how pleasant it is.
A.When | B.Although | C.Because | D.Unless |
For miles around me there was nothing but a desert, without a single plant or tree ______.
A.on earth | B.in sight | C.at a distance | D.in place |
More and more people choose to shop in a supermarket as it offers a great ____ of goods.
A.expression | B.mixture | C.variety | D.combination |