Before he went abroad, he spent as much time as he ____ English. 
#94791
A
could learning
B
learned
C
to learn
D
could learn
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I’m sorry I can’t help ___________ the flowers, because I’m busy preparing for the singing competition _____________ tomorrow.
#91888
A
watering; to be held
B
water; being held
C
to water; held
D
to water; to be held
No matter how  ______,scientists are eager to know more about it by exploring.
#92869
A
an ocean may be deep
B
deep may an ocean be
C
deep an ocean may be
D
may an ocean be deep