Being a teacher always encouraging students to think for themselves, I won't tell them answers until they __________ on a math problem for more than an hour.
#101395
A
have worked
B
will have worked
C
will have been working
D
had worked
推荐题目
It is reported that two big forest fires in the border area between France and Spain since Sunday _______ several people.
#101909
A
kill
B
had killed
C
killed
D
have killed
——There'll be billions of people to watch the Spring Festival gala on TV tonight.——I know. The whole world______．It's a really wonderful event.
#101251
A
watches
B
is watching
C
has watched
D
will be watching
Few people seem to care about what a super star _____ before he/she became famous.
#102262
A
goes through
B
is going through
C
have gone through
D
had gone through
The whole family _______ to Shanghai for holiday next week.
#103016
A
is going
B
are going
C
goes
D
have gone
–More than 13.7 million Americans were unable to find work in July.--Yeah, most jobs for months.
#101590
A
are seeking
B
sought
C
have been seeking
D
had been seeking