It was _____back home after the experiments.
A. not until midnight did he go B. until midnight that he didn’t go
C. not until midnight that he went D. until midnight when he didn’t go
The car accident on the main road the other day ________ the careless driving of a driver.
A. was due to B. resulted in
C. led to D. was resulted from
I ordered _______pizza and salad. _______ pizza was nice but the salad was terrible.
A.a;The B. a;不填 C.the；the D. the；不填
______ a certain doubt among the people as to the practical value of the project.
A. It has B. They have C. It remains D. There remains
Remember that you won't be able to cancel the contract ____you've signed.
A. before B. until C. once D. though
Leonardo da Vinci (1452-1519) ____ birds kept in cages in order to have the pleasure of setting them free.
A. is said to be buying B. is said to have bought
C. had said to buy D. has sad to have bought
