The problem is too hard.I haven't ( )the answer A.WORKED ON
The problem is too hard.I haven't ( )the answer A.WORKED ON
The is very hard.I can't answer it.A.problem B.question C.ma
The car is __expensive,I haven't got__ money.A.too,anyB.too,
I worked on the problem ____ a long time and I worked it out
I worked on the problem for a long time and I worked it out
the problem is too diffcult for___in the class to answer
The maths problem is so hard,I really don't know ____.A.how
The question is too hard for the girl _____(answer).
I don't understand the way_____they worked out the problem.
I don`t understand the way ___they worked out the problem A.
the question is too hard .n( )can answer it.i waited for Bri
the question is too hard for me to answer