Question

--We’ll have a hiking trip, but when shall we meet??
--Let’s make it       half past eight       the morning of May 1st.

A．/; on

B．at; in

C．./; in

D．at; on

Answer 1

A

介词考查题。第一空half past eight相当于副词作用，前面不用介词；第二空某天的上午用介词on，所以选A。