My father often goes to work early.... the morning and returns home.... midday.
A.in / at
B.on / for
C.at / about
D.up / to

We will have completed our work.... next month, and then we will have an interesting vacation.... summer
A.since / on
B.for / of
C.on / at
D. by / in

I often busy.... weekdays and free.... the weekend.
A.at / for
B.in / on
C.during / within
D.on / at

Farming now use (A) 10 percent (B) of the earth’s (C) land area to produce (D) food.
A.to produce
B.percent
C.use
D.earth’s

In the past, some of the most highly (A) stressed areas in (B) education was (C) the moral improvement of students.(D)
A.was
B.highly
C.in
D.students

The natural conditions (A) in the US which most (B) affecting (C) manufacturers are (D) factory power and labor supply.
A.affecting
B.most
C.natural conditions
D.are

The result of (A) the studies have had (B) a strong (C) impact on (D) future developments
A.have had
B.of
C.strong
D.on

The result of the evaluations (A) and recommendations show (B) that more effort (C) needs to go into research. (D)
A.evaluations
B.show
C.more effort
D.into research

Not only the students but also their instructor.... to the principal’s office.
A.have been called
B.has been called
C.call
D.is calling

Michael, along with his brothers and support team,.... many major cities around the world every year.
A.are visiting
B.is visiting
C.visit
D.visits