1.It's essential that he ____. His illness seems worse
A.need an operation
B.needs an operation
C.need to operate
D.needed operating
2.It's essential_____
A.for everyone know what to do in case of fire
B.that everyone know what to do when there is a fire
C.that everyone to know what to do when there is a fire
D.for everyone knows what to do in case of fire
3.The teacher insists ___ homework regularly
A.that the student do
B.that the student does
C. the student to do
D.that the student is doing
4. it is critical that the researcher ___ everything clearly to the participants before asking them to complete the questionnaire
A.must explain
B.explains
C.explain
D.is explained
5. they ___that the theater be demolished to make way for the new shopping center
A.propose
B.promised
C.hoped
D.tendered
6. it was essential that we ____ the lease before the end of the month
A.sign
B.signed
C.had signed
D.were signing
1.It's essential that he ____. His illness seems worse
A.need an operation
B.needs an operation
C.need to operate
D.needed operating
2.It's essential_____
A.for everyone know what to do in case of fire
B.that everyone know what to do when there is a fire
C.that everyone to know what to do when there is a fire
D.for everyone knows what to do in case of fire
3.The teacher insists ___ homework regularly
A.that the student do
B.that the student does
C. the student to do
D.that the student is doing
4. it is critical that the researcher ___ everything clearly to the participants before asking them to complete the questionnaire
A.must explain
B.explains
C.explain
D.is explained
5. they ___that the theater be demolished to make way for the new shopping center
A.propose
B.promised
C.hoped
D.tendered
6. it was essential that we ____ the lease before the end of the month
A.sign
B.signed
C.had signed
D.were signing