It_______methreeyearstodrawthebeautifulhorses.
A、took
B、paid
C、spent
D、cost
Charles Smith, ______ was my former teacher, retired last year.
A、which
B、who
C、that
D、as
It is important to ________ your skin from the harmful strong sunlight.
A、protect
B、prevent
C、stop
D、keep
Pleaseremindme_______herthisnote.
A、leave
B、toleave
C、leaving
D、left
_______ for your laziness，you could have finished the assignment by now.
A、Haditnotbeen
B、Itwerenot
C、Weren’tit
D、Hadnotitbeen