D、those

21.It is required that anyone applying for a driver’s license _________ a set of tests.

A、take B、takes C、took D、will take

22.There is no evidence _______ oil price will come down in the near future.

A、which B、that C、where D、as

23.The policeman saw the thief _______ he appeared on the street corner.

A、not until B、as long as C、the moment D、only if

24.The policeman kept his eyes _______ on the screen of the computer to identify the criminal’s footprints.

A、fixed B、fixing C、being fixed D、to fix

25.Tom ____ the party as no one saw him there yesterday evening.

A、can’t attend B、mustn’t attend