--Who is the person talking with you just now? -- Well, if you ______ know, his name is David.
#88076
A
may
B
can
C
must
D
shall
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I commanded that he      at once.
#87023
A
left
B
leaves
C
leave
D
to leave
You____me my bike yesterday afternoon; I needed it so badly.
#87905
A
should have returned
B
should return
C
must return
D
must have returned
The plant is dead. I ______ it more water.
#87232
A
will give
B
will have given
C
should have given
D
must give