-I haven't heard from Henry for a long time. -What do you think ________ to him? 
#104036
A
happening
B
to happen
C
has happened
D
had happened
推荐题目
Miriam arrived at 5 pm, but Mr. Whitker _______ the store.
#99789
A
closed
B
has closed
C
had closed
D
was closed
Ladies and gentlemen, please fasten your seat belts .The plane _____ .
#101606
A
takes off
B
is taking off
C
has taken off
D
took off