They learned it all by themselves. That is to say nobody told them ________ .
A. what to do it B. how to do it C. where to do D. when to do
--- Are there ___________ students in your school?
--- Yes, _____________ the students is about 2000.
A. a number of; a number of B. the number of; the number
C. a number of; the number of D. the number of; a number of
___________ it snows, ____________ the children feel.
A. More heavily; the
happier B.
More heavily
;
happier
C. The more heavily; happier D. The more heavily; the happier
Luo Yang devoted all his life _________for China Nation Aviation(中国航天).
A. to work B. work C. to working D. worked
______ the age of 89, he passed away ______ a cold winter morning.
A. At, on B. On, on C. At, in D. In, on
I don’t know if my uncle_______. If he______, I will be very happy.
A. comes; will come B. will come; will come
C. comes; comes D. will come; comes
