Your cough ought ______ before it gets worse.
#104320
A
tosee
B
tobeseen
C
toseeto
D
tobeseento
推荐题目
All the preparations for the task _________, and we’re ready to start.
#99042
A
complete
B
have completed
C
had been completed
D
have been completed
— Have you finished your composition already?— Yes. I ______ it in twenty minutes.
#104629
A
have finished
B
finished
C
will finish
D
had finished
Don’t disturb me. I_______ letters all morning and have written ten so far.
#100860
A
have written
B
am writing
C
was writing
D
have been writing
Every individual _________ in a continually changing world of experience of which he or she is the center.
#102440
A
exists
B
will exist
C
is existing
D
has existed
We are confident that the environment________by our further efforts to reduce pollution. (2013·辽宁，30)
#99433
A
had been improved
B
will be improved
C
is improved
D
was improved