Scientists are hoping for a _____ in the search for a cure for cancer.
#6618
A
breakthrough
B
break
C
deal
D
progress
推荐题目
After swimming in the sea,they came out of water and lay on the ___________ for a rest.
#6990
A
bank
B
coast
C
seaside
D
beach
I bought a dress for only 10 dollars in a sale; it was a real .
#6883
A
exchange
B
bargain
C
trade
D
business
I accepted a _____ teaching students ages 6 to 12 with severe learning and behavioral ____ who’d moved from school to school.
#5217
A
position; difficulties
B
post; hard
C
job; troubles
D
occupation; difficulty
More and more people choose to shop in a supermarket as it offers a great ________of goods.
#5061
A
variety
B
mixture
C
extension
D
combination
— What should I do before operating the new machine?— You’d better read its ______ first carefully.
#6819
A
explanations
B
instructions
C
descriptions
D
introductions
