We teachers should ______ students ______ us questions in class. 
#48995
A
be allowed, to ask
B
let, to ask
C
encourage, to ask
D
allow, ask
推荐题目
 Michael learned       basketball     his father.
#49731
A
playing; from
B
to play; from
C
playing; with
D
to play; with
I had some trouble ___my homework
#50151
A
to finish
B
finishing
C
finishes
D
finish
I try ___ a lot of vegetables.
#50912
A
to eat
B
eating
C
eat
D
to have eating