--I hear Jack Chan will come to Laiwu next week. --Really? _______ he comes, my younger sister will be very happy,
#58506
A
If
B
Until
C
Unless
D
Before
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 ____my brother ____ my sister is able to use a computer. However, I can.
#56044
A
Neither ---- nor
B
Not only ---- but also
C
Either ---- or
D
Both---- and
____________ he is poor, he is happy.
#56858
A
Even though
B
Because
C
So
D
But